Correctly free resources in uiLoadGame

.gitattributes

@@ -4,7 +4,6 @@
 *.html  text eol=lf diff=html
 *.java  text eol=lf diff=java
 *.js    text eol=lf diff=js
-*.sh    text eol=lf
 *.txt   text eol=lf
 
 *.class binary

.gitignore

@@ -1,5 +1,4 @@
-/lemur
-/lemur.exe
+/shrooms-vb
+/shrooms-vb.exe
 .vscode
 output
-/target

Cargo.toml

@@ -1,52 +0,0 @@
-[package]
-name = "lemur"
-description = "An emulator for the Virtual Boy."
-repository = "https://git.virtual-boy.com/PVB/lemur"
-publish = false
-license = "MIT"
-version = "0.1.2"
-edition = "2021"
-
-[dependencies]
-anyhow = "1"
-bitflags = { version = "2", features = ["serde"] }
-bytemuck = { version = "1", features = ["derive"] }
-clap = { version = "4", features = ["derive"] }
-cpal = { git = "https://github.com/sidit77/cpal.git", rev = "66ed6be" }
-directories = "5"
-egui = { version = "0.29", features = ["serde"] }
-egui_extras = { version = "0.29", features = ["image"] }
-egui-toast = "0.15"
-egui-winit = "0.29"
-egui-wgpu = { version = "0.29", features = ["winit"] }
-gilrs = { version = "0.11", features = ["serde-serialize"] }
-image = { version = "0.25", default-features = false, features = ["png"] }
-itertools = "0.13"
-num-derive = "0.4"
-num-traits = "0.2"
-oneshot = "0.1"
-pollster = "0.4"
-rfd = "0.15"
-rtrb = "0.3"
-rubato = "0.16"
-serde = { version = "1", features = ["derive"] }
-serde_json = "1"
-thread-priority = "1"
-wgpu = "22.1"
-winit = { version = "0.30", features = ["serde"] }
-
-[target.'cfg(windows)'.dependencies]
-windows = { version = "0.58", features = ["Win32_System_Threading"] }
-
-[build-dependencies]
-cc = "1"
-winresource = "0.1"
-
-[profile.release]
-lto = true
-
-[package.metadata.bundle]
-name = "Lemur"
-identifier = "com.virtual-boy.Lemur"
-icon = ["assets/lemur-256x256.png"]
-category = "games"

README.md

@@ -1,25 +1,19 @@
-# Lemur
+# Shrooms VB (native)
 
-A Virtual Boy emulator built around the shrooms-vb core. Written in Rust, using winit, wgpu, and egui. Should run on any major OS.
+An SDL-based implementation of shrooms-vb.
 
 ## Setup
 
 Install the following dependencies:
- - `cargo`
+ - `gcc` (or MinGW on Windows) (or whatever, just set `CC`)
+ - `pkg-config`
+ - sdl2
 
 Run
 ```sh
-cargo build --release
+make build
 ```
 
-The executable will be in `target/release/lemur[.exe]`
+## Dependencies
 
-## Release
-
-Bump the version number in `Cargo.toml`, then run this script:
-
-```sh
-./scripts/release.sh
-```
-
-It uses docker to cross compile for Windows, MacOS, and Linux. All binaries are left in the `output` directory.
+This program uses a vendored version of [nuklear](https://github.com/Immediate-Mode-UI/Nuklear/tree/6566d9075d5fed48af014c93f87c4aed8c4bd21c) for GUIs.

assets.h

@@ -0,0 +1,17 @@
+#ifndef SHROOMS_VB_NATIVE_ASSETS_
+#define SHROOMS_VB_NATIVE_ASSETS_
+
+#include <stdint.h>
+
+extern const uint8_t _binary_assets_lefteye_bin_start;
+const uint8_t *LEFT_EYE_DEFAULT = &_binary_assets_lefteye_bin_start; 
+
+extern const uint8_t _binary_assets_righteye_bin_start;
+const uint8_t *RIGHT_EYE_DEFAULT = &_binary_assets_righteye_bin_start; 
+
+extern const uint8_t _binary_assets_selawk_bin_start;
+extern const uint8_t _binary_assets_selawk_bin_end;
+const uint8_t *SELAWIK = &_binary_assets_selawk_bin_start;
+#define SELAWIK_LEN (&_binary_assets_selawk_bin_end - &_binary_assets_selawk_bin_start)
+
+#endif

audio.c

@@ -0,0 +1,69 @@
+#include <audio.h>
+#include <stdio.h>
+
+void audioCallback(void *userdata, uint8_t *stream, int len) {
+    AudioContext *aud;
+    SDL_assert(len == 834 * 4);
+
+    aud = userdata;
+    if (!aud->filled) {
+        /* too little data, play silence */
+        SDL_memset4(stream, 0, 834);
+        return;
+    }
+    SDL_memcpy4(stream, aud->buffers[aud->current], 834);
+    ++aud->current;
+    aud->current %= 2;
+    aud->filled -= 1;
+} 
+
+int audioInit(AudioContext *aud) {
+    SDL_AudioSpec spec;
+    spec.freq = 41700;
+    spec.format = AUDIO_S16;
+    spec.channels = 2;
+    spec.samples = 834;
+    spec.callback = &audioCallback;
+    spec.userdata = aud;
+
+    aud->id = SDL_OpenAudioDevice(NULL, 0, &spec, NULL, 0);
+    aud->paused = true;
+    if (!aud->id) {
+        fprintf(stderr, "could not open audio device: %s\n", SDL_GetError());
+        return -1;
+    }
+    aud->current = 0;
+    aud->filled = 0;
+    return 0;
+}
+
+void audioDestroy(AudioContext *aud) {
+    SDL_CloseAudioDevice(aud->id);
+}
+
+int audioUpdate(AudioContext *aud, void *data, uint32_t bytes) {
+    int filled;
+    if (!aud->id) return -1;
+    SDL_assert(bytes == 834 * 4);
+
+    SDL_LockAudioDevice(aud->id);
+    if (aud->filled < 2) {
+        int next = (aud->current + aud->filled) % 2;
+        SDL_memcpy4(aud->buffers[next], data, bytes / 4);
+        aud->filled += 1;
+    }
+    filled = aud->filled;
+    SDL_UnlockAudioDevice(aud->id);
+
+    if (aud->paused) {
+        SDL_PauseAudioDevice(aud->id, false);
+        aud->paused = false;
+    }
+
+    while (filled > 1) {
+        SDL_Delay(0);
+        filled = aud->filled;
+    }
+
+    return 0;
+}

audio.h

@@ -0,0 +1,19 @@
+#ifndef SHROOMS_VB_NATIVE_AUDIO_
+#define SHROOMS_VB_NATIVE_AUDIO_
+
+#include <SDL2/SDL.h>
+#include <stdbool.h>
+
+typedef struct {
+    SDL_AudioDeviceID id;
+    bool paused;
+    uint32_t buffers[2][834];
+    int current;
+    int filled;
+} AudioContext;
+
+int audioInit(AudioContext *aud);
+void audioDestroy(AudioContext *aud);
+int audioUpdate(AudioContext *aud, void *data, uint32_t bytes);
+
+#endif

build.Dockerfile

@@ -1,34 +0,0 @@
-# This Dockerfile produces a base image for builds.
-# It includes all dependencies necessary to cross-compile for Windows/MacOS/Linux.
-
-FROM crazymax/osxcross:latest-ubuntu AS osxcross
-
-FROM rust:latest
-RUN rustup target add x86_64-pc-windows-msvc && \
-    rustup target add x86_64-apple-darwin && \
-    rustup target add aarch64-apple-darwin && \
-    apt-get update && \
-    apt-get install -y clang-19 lld-19 libc6-dev libasound2-dev libudev-dev genisoimage mingw-w64 && \
-    cargo install cargo-bundle xwin && \
-    xwin --accept-license splat --output xwin && \
-    rm -rf .xwin-cache && \
-    ln -s $(which clang-19) /usr/bin/clang && \
-    ln -s $(which clang++-19) /usr/bin/clang++
-COPY --from=osxcross /osxcross /osxcross
-
-ENV PATH="/osxcross/bin:$PATH" \
-    LD_LIBRARY_PATH="/osxcross/lib" \
-    CC="clang-19" CXX="clang++-19" AR="llvm-ar-19" \
-    CC_x86_64-apple-darwin="o64-clang" \
-    CXX_x86_64-apple-darwin="o64-clang++" \
-    CC_aarch64-apple-darwin="oa64-clang" \
-    CXX_aarch64-apple-darwin="o6a4-clang++" \
-    CARGO_TARGET_X86_64_PC_WINDOWS_MSVC_LINKER="lld-link-19" \
-    CARGO_TARGET_X86_64_APPLE_DARWIN_LINKER="o64-clang" \
-    CARGO_TARGET_X86_64_APPLE_DARWIN_AR="llvm-ar-19" \
-    CARGO_TARGET_AARCH64_APPLE_DARWIN_LINKER="oa64-clang" \
-    CARGO_TARGET_AARCH64_APPLE_DARWIN_AR="llvm-ar-19" \
-    CROSS_COMPILE="setting-this-to-silence-a-warning-" \
-    RC_PATH="llvm-rc-19" \
-    RUSTFLAGS="-Lnative=/xwin/crt/lib/x86_64 -Lnative=/xwin/sdk/lib/um/x86_64 -Lnative=/xwin/sdk/lib/ucrt/x86_64" \
-    MACOSX_DEPLOYMENT_TARGET="14.5"

build.rs

@@ -1,22 +0,0 @@
-use std::{error::Error, path::Path};
-
-fn main() -> Result<(), Box<dyn Error>> {
-    if std::env::var("CARGO_CFG_TARGET_OS")? == "windows" {
-        let mut res = winresource::WindowsResource::new();
-        res.set_icon("assets/lemur.ico");
-        res.compile()?;
-    }
-
-    println!("cargo::rerun-if-changed=shrooms-vb-core");
-    cc::Build::new()
-        .include(Path::new("shrooms-vb-core/core"))
-        .opt_level(2)
-        .flag_if_supported("-fno-strict-aliasing")
-        .define("VB_LITTLE_ENDIAN", None)
-        .define("VB_SIGNED_PROPAGATE", None)
-        .define("VB_DIV_GENERIC", None)
-        .file(Path::new("shrooms-vb-core/core/vb.c"))
-        .compile("vb");
-
-    Ok(())
-}

cli.c

@@ -0,0 +1,16 @@
+#include <cli.h>
+#include <stdio.h>
+
+int parseCLIArgs(int argc, char **argv, CLIArgs *args) {
+    int arg;
+
+    args->filename = NULL;
+    for (arg = 1; arg < argc; ++arg) {
+        if (args->filename) {
+            fprintf(stderr, "usage: %s /path/to/rom.vb\n", argv[0]);
+            return 1;
+        }
+        args->filename = argv[arg];
+    }
+    return 0;
+}

cli.h

@@ -0,0 +1,10 @@
+#ifndef SHROOMS_VB_NATIVE_CLI_
+#define SHROOMS_VB_NATIVE_CLI_
+
+typedef struct {
+    char *filename;
+} CLIArgs;
+
+int parseCLIArgs(int argc, char **argv, CLIArgs *args);
+
+#endif

controller.c

@@ -0,0 +1,65 @@
+#include <controller.h>
+
+#define VB_PWR 0x0001
+#define VB_SGN 0x0002
+#define VB_A   0x0004
+#define VB_B   0x0008
+#define VB_RT  0x0010
+#define VB_LT  0x0020
+#define VB_RU  0x0040
+#define VB_RR  0x0080
+#define VB_LR  0x0100
+#define VB_LL  0x0200
+#define VB_LD  0x0400
+#define VB_LU  0x0800
+#define VB_STA 0x1000
+#define VB_SEL 0x2000
+#define VB_RL  0x4000
+#define VB_RD  0x8000
+
+static uint16_t symToMask(SDL_KeyCode sym) {
+    switch (sym) {
+    default: return 0;
+    case SDLK_a:
+        return VB_SEL;
+    case SDLK_s:
+        return VB_STA;
+    case SDLK_d:
+        return VB_B;
+    case SDLK_f:
+        return VB_A;
+    case SDLK_e:
+        return VB_LT;
+    case SDLK_r:
+        return VB_RT;
+    case SDLK_i:
+        return VB_RU;
+    case SDLK_j:
+        return VB_RL;
+    case SDLK_k:
+        return VB_RD;
+    case SDLK_l:
+        return VB_RR;
+    case SDLK_UP:
+        return VB_LU;
+    case SDLK_LEFT:
+        return VB_LL;
+    case SDLK_DOWN:
+        return VB_LD;
+    case SDLK_RIGHT:
+        return VB_LR;
+    }
+}
+
+void ctrlInit(ControllerState *ctrl) {
+    ctrl->keys = VB_SGN;
+}
+void ctrlKeyDown(ControllerState *ctrl, SDL_Keycode sym) {
+    ctrl->keys |= symToMask(sym);
+}
+void ctrlKeyUp(ControllerState *ctrl, SDL_Keycode sym) {
+    ctrl->keys &= ~symToMask(sym);
+}
+uint16_t ctrlKeys(ControllerState *ctrl) {
+    return ctrl->keys;
+}

controller.h

@@ -0,0 +1,16 @@
+#ifndef SHROOMS_VB_NATIVE_CONTROLLER_
+#define SHROOMS_VB_NATIVE_CONTROLLER_
+
+#include <SDL2/SDL.h>
+#include <stdint.h>
+
+typedef struct {
+    uint16_t keys;
+} ControllerState;
+
+void ctrlInit(ControllerState *ctrl);
+void ctrlKeyDown(ControllerState *ctrl, SDL_Keycode sym);
+void ctrlKeyUp(ControllerState *ctrl, SDL_Keycode sym);
+uint16_t ctrlKeys(ControllerState *ctrl);
+
+#endif

emulation.c

@@ -0,0 +1,75 @@
+#include "emulation.h"
+#include <stdlib.h>
+
+static int onFrame(VB *sim) {
+    SimContext *ctx = vbGetUserData(sim);
+    ctx->hasFrame = true;
+    return 1;
+}
+
+int emuInit(EmulationContext *emu) {
+    emu->sim = malloc(vbSizeOf());
+    vbInit(emu->sim);
+
+    emu->ctx = malloc(sizeof(SimContext));
+    emu->ctx->hasFrame = false;
+    emu->ctx->currentSample = 0;
+    vbSetSamples(emu->sim, emu->ctx->samples[emu->ctx->currentSample], VB_S16, 834);
+    vbSetUserData(emu->sim, emu->ctx);
+    vbSetFrameCallback(emu->sim, &onFrame);
+
+    return 0;
+}
+
+void emuDestroy(EmulationContext *emu) {
+    uint8_t *rom = vbGetCartROM(emu->sim, NULL);
+    SimContext *ctx = vbGetUserData(emu->sim);
+
+    if (rom) free(rom);
+    if (ctx) free(ctx);
+    free(emu->sim);
+}
+
+void emuLoadGame(EmulationContext *emu, uint8_t *rom, uint32_t romSize) {
+    uint8_t *oldRom = vbGetCartROM(emu->sim, NULL);
+    if (oldRom) free(oldRom);
+    vbSetCartROM(emu->sim, rom, romSize);
+    vbReset(emu->sim);
+}
+
+void emuReset(EmulationContext *emu) {
+    vbReset(emu->sim);
+}
+
+bool emuIsGameLoaded(EmulationContext *emu) {
+    return vbGetCartROM(emu->sim, NULL) != NULL;
+}
+
+#define MAX_STEP_CLOCKS 20000000
+void emuTick(EmulationContext *emu) {
+    uint32_t clocks = MAX_STEP_CLOCKS;
+    vbEmulate(emu->sim, &clocks);
+}
+
+bool emuReadPixels(EmulationContext *emu, uint8_t *left, uint8_t *right) {
+    if (!emu->ctx->hasFrame) {
+        return false;
+    }
+    emu->ctx->hasFrame = false;
+    vbGetPixels(emu->sim, left, 1, 384, right, 1, 384);
+    return true;
+}
+
+void emuReadSamples(EmulationContext *emu, void **data, uint32_t *bytes) {
+    uint32_t samplePairs;
+
+    *data = vbGetSamples(emu->sim, NULL, NULL, &samplePairs);
+    *bytes = samplePairs * 4;
+    emu->ctx->currentSample += 1;
+    emu->ctx->currentSample %= 2;
+    vbSetSamples(emu->sim, emu->ctx->samples[emu->ctx->currentSample], VB_S16, 834);
+}
+
+void emuSetKeys(EmulationContext *emu, uint16_t keys) {
+    vbSetKeys(emu->sim, keys);
+}

emulation.h

@@ -0,0 +1,30 @@
+#ifndef SHROOMS_VB_NATIVE_EMULATION_
+#define SHROOMS_VB_NATIVE_EMULATION_
+
+#include "shrooms-vb-core/core/vb.h"
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef struct SimContext {
+    bool hasFrame;
+    uint32_t samples[2][834];
+    uint32_t currentSample;
+} SimContext;
+
+typedef struct EmulationContext {
+    VB *sim;
+    SimContext *ctx;
+} EmulationContext;
+
+int emuInit(EmulationContext *emu);
+void emuDestroy(EmulationContext *emu);
+void emuLoadGame(EmulationContext *emu, uint8_t *rom, uint32_t romSize);
+void emuReset(EmulationContext *emu);
+bool emuIsGameLoaded(EmulationContext *emu);
+
+void emuTick(EmulationContext *emu);
+bool emuReadPixels(EmulationContext *emu, uint8_t *left, uint8_t *right);
+void emuReadSamples(EmulationContext *emu, void **data, uint32_t *bytes);
+void emuSetKeys(EmulationContext *emu, uint16_t keys);
+
+#endif

external/nuklear_sdl_renderer.h

@@ -0,0 +1,393 @@
+/*
+ * Nuklear - 4.9.4 - public domain
+ */
+/*
+ * ==============================================================
+ *
+ *                              API
+ *
+ * ===============================================================
+ */
+#ifndef NK_SDL_RENDERER_H_
+#define NK_SDL_RENDERER_H_
+
+#ifndef NK_SDL_RENDERER_SDL_H
+#define NK_SDL_RENDERER_SDL_H <SDL.h>
+#endif
+#include NK_SDL_RENDERER_SDL_H
+NK_API struct nk_context*   nk_sdl_init(SDL_Window *win, SDL_Renderer *renderer);
+NK_API void                 nk_sdl_font_stash_begin(struct nk_font_atlas **atlas);
+NK_API void                 nk_sdl_font_stash_end(void);
+NK_API int                  nk_sdl_handle_event(SDL_Event *evt);
+NK_API void                 nk_sdl_render(enum nk_anti_aliasing);
+NK_API void                 nk_sdl_shutdown(void);
+NK_API void                 nk_sdl_handle_grab(void);
+
+#if SDL_COMPILEDVERSION < SDL_VERSIONNUM(2, 0, 22)
+/* Metal API does not support cliprects with negative coordinates or large
+ * dimensions. The issue is fixed in SDL2 with version 2.0.22 but until
+ * that version is released, the NK_SDL_CLAMP_CLIP_RECT flag can be used to
+ * ensure the cliprect is itself clipped to the viewport.
+ * See discussion at https://discourse.libsdl.org/t/rendergeometryraw-producing-different-results-in-metal-vs-opengl/34953
+ */
+#define NK_SDL_CLAMP_CLIP_RECT
+#endif
+
+#endif /* NK_SDL_RENDERER_H_ */
+
+/*
+ * ==============================================================
+ *
+ *                          IMPLEMENTATION
+ *
+ * ===============================================================
+ */
+#ifdef NK_SDL_RENDERER_IMPLEMENTATION
+#include <string.h>
+#include <stdlib.h>
+
+struct nk_sdl_device {
+    struct nk_buffer cmds;
+    struct nk_draw_null_texture tex_null;
+    SDL_Texture *font_tex;
+};
+
+struct nk_sdl_vertex {
+    float position[2];
+    float uv[2];
+    nk_byte col[4];
+};
+
+static struct nk_sdl {
+    SDL_Window *win;
+    SDL_Renderer *renderer;
+    struct nk_sdl_device ogl;
+    struct nk_context ctx;
+    struct nk_font_atlas atlas;
+    Uint64 time_of_last_frame;
+} sdl;
+
+NK_INTERN void
+nk_sdl_device_upload_atlas(const void *image, int width, int height)
+{
+    struct nk_sdl_device *dev = &sdl.ogl;
+
+    SDL_Texture *g_SDLFontTexture = SDL_CreateTexture(sdl.renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, width, height);
+    if (g_SDLFontTexture == NULL) {
+        SDL_Log("error creating texture");
+        return;
+    }
+    SDL_UpdateTexture(g_SDLFontTexture, NULL, image, 4 * width);
+    SDL_SetTextureBlendMode(g_SDLFontTexture, SDL_BLENDMODE_BLEND);
+    dev->font_tex = g_SDLFontTexture;
+}
+
+NK_API void
+nk_sdl_render(enum nk_anti_aliasing AA)
+{
+    /* setup global state */
+    struct nk_sdl_device *dev = &sdl.ogl;
+
+    {
+        SDL_Rect saved_clip;
+#ifdef NK_SDL_CLAMP_CLIP_RECT
+        SDL_Rect viewport;
+#endif
+        SDL_bool clipping_enabled;
+        int vs = sizeof(struct nk_sdl_vertex);
+        size_t vp = offsetof(struct nk_sdl_vertex, position);
+        size_t vt = offsetof(struct nk_sdl_vertex, uv);
+        size_t vc = offsetof(struct nk_sdl_vertex, col);
+
+        /* convert from command queue into draw list and draw to screen */
+        const struct nk_draw_command *cmd;
+        const nk_draw_index *offset = NULL;
+        struct nk_buffer vbuf, ebuf;
+
+        /* fill converting configuration */
+        struct nk_convert_config config;
+        static const struct nk_draw_vertex_layout_element vertex_layout[] = {
+            {NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_sdl_vertex, position)},
+            {NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_sdl_vertex, uv)},
+            {NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_sdl_vertex, col)},
+            {NK_VERTEX_LAYOUT_END}
+        };
+
+        Uint64 now = SDL_GetTicks64();
+        sdl.ctx.delta_time_seconds = (float)(now - sdl.time_of_last_frame) / 1000;
+        sdl.time_of_last_frame = now;
+
+        NK_MEMSET(&config, 0, sizeof(config));
+        config.vertex_layout = vertex_layout;
+        config.vertex_size = sizeof(struct nk_sdl_vertex);
+        config.vertex_alignment = NK_ALIGNOF(struct nk_sdl_vertex);
+        config.tex_null = dev->tex_null;
+        config.circle_segment_count = 22;
+        config.curve_segment_count = 22;
+        config.arc_segment_count = 22;
+        config.global_alpha = 1.0f;
+        config.shape_AA = AA;
+        config.line_AA = AA;
+
+        /* convert shapes into vertexes */
+        nk_buffer_init_default(&vbuf);
+        nk_buffer_init_default(&ebuf);
+        nk_convert(&sdl.ctx, &dev->cmds, &vbuf, &ebuf, &config);
+
+        /* iterate over and execute each draw command */
+        offset = (const nk_draw_index*)nk_buffer_memory_const(&ebuf);
+
+        clipping_enabled = SDL_RenderIsClipEnabled(sdl.renderer);
+        SDL_RenderGetClipRect(sdl.renderer, &saved_clip);
+#ifdef NK_SDL_CLAMP_CLIP_RECT
+        SDL_RenderGetViewport(sdl.renderer, &viewport);
+#endif
+
+        nk_draw_foreach(cmd, &sdl.ctx, &dev->cmds)
+        {
+            if (!cmd->elem_count) continue;
+
+            {
+                SDL_Rect r;
+                r.x = cmd->clip_rect.x;
+                r.y = cmd->clip_rect.y;
+                r.w = cmd->clip_rect.w;
+                r.h = cmd->clip_rect.h;
+#ifdef NK_SDL_CLAMP_CLIP_RECT
+                if (r.x < 0) {
+                    r.w += r.x;
+                    r.x = 0;
+                }
+                if (r.y < 0) {
+                    r.h += r.y;
+                    r.y = 0;
+                }
+                if (r.h > viewport.h) {
+                    r.h = viewport.h;
+                }
+                if (r.w > viewport.w) {
+                    r.w = viewport.w;
+                }
+#endif
+                SDL_RenderSetClipRect(sdl.renderer, &r);
+            }
+
+            {
+                const void *vertices = nk_buffer_memory_const(&vbuf);
+
+                SDL_RenderGeometryRaw(sdl.renderer,
+                        (SDL_Texture *)cmd->texture.ptr,
+                        (const float*)((const nk_byte*)vertices + vp), vs,
+                        (const SDL_Color*)((const nk_byte*)vertices + vc), vs,
+                        (const float*)((const nk_byte*)vertices + vt), vs,
+                        (vbuf.needed / vs),
+                        (void *) offset, cmd->elem_count, 2);
+
+                offset += cmd->elem_count;
+            }
+        }
+
+        SDL_RenderSetClipRect(sdl.renderer, &saved_clip);
+        if (!clipping_enabled) {
+            SDL_RenderSetClipRect(sdl.renderer, NULL);
+        }
+
+        nk_clear(&sdl.ctx);
+        nk_buffer_clear(&dev->cmds);
+        nk_buffer_free(&vbuf);
+        nk_buffer_free(&ebuf);
+    }
+}
+
+static void
+nk_sdl_clipboard_paste(nk_handle usr, struct nk_text_edit *edit)
+{
+    const char *text = SDL_GetClipboardText();
+    if (text) nk_textedit_paste(edit, text, nk_strlen(text));
+    (void)usr;
+}
+
+static void
+nk_sdl_clipboard_copy(nk_handle usr, const char *text, int len)
+{
+    char *str = 0;
+    (void)usr;
+    if (!len) return;
+    str = (char*)malloc((size_t)len+1);
+    if (!str) return;
+    memcpy(str, text, (size_t)len);
+    str[len] = '\0';
+    SDL_SetClipboardText(str);
+    free(str);
+}
+
+NK_API struct nk_context*
+nk_sdl_init(SDL_Window *win, SDL_Renderer *renderer)
+{
+#ifndef NK_SDL_CLAMP_CLIP_RECT
+    SDL_RendererInfo info;
+    SDL_version runtimeVer;
+
+    /* warn for cases where NK_SDL_CLAMP_CLIP_RECT should have been set but isn't */
+    SDL_GetRendererInfo(renderer, &info);
+    SDL_GetVersion(&runtimeVer);
+    if (strncmp("metal", info.name, 5) == 0 &&
+        SDL_VERSIONNUM(runtimeVer.major, runtimeVer.minor, runtimeVer.patch) < SDL_VERSIONNUM(2, 0, 22))
+    {
+        SDL_LogWarn(
+            SDL_LOG_CATEGORY_APPLICATION,
+            "renderer is using Metal API but runtime SDL version %d.%d.%d is older than compiled version %d.%d.%d, "
+            "which may cause issues with rendering",
+            runtimeVer.major, runtimeVer.minor, runtimeVer.patch,
+            SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL
+        );
+    }
+#endif
+    sdl.win = win;
+    sdl.renderer = renderer;
+    sdl.time_of_last_frame = SDL_GetTicks64();
+    nk_init_default(&sdl.ctx, 0);
+    sdl.ctx.clip.copy = nk_sdl_clipboard_copy;
+    sdl.ctx.clip.paste = nk_sdl_clipboard_paste;
+    sdl.ctx.clip.userdata = nk_handle_ptr(0);
+    nk_buffer_init_default(&sdl.ogl.cmds);
+    return &sdl.ctx;
+}
+
+NK_API void
+nk_sdl_font_stash_begin(struct nk_font_atlas **atlas)
+{
+    nk_font_atlas_init_default(&sdl.atlas);
+    nk_font_atlas_begin(&sdl.atlas);
+    *atlas = &sdl.atlas;
+}
+
+NK_API void
+nk_sdl_font_stash_end(void)
+{
+    const void *image; int w, h;
+    image = nk_font_atlas_bake(&sdl.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
+    nk_sdl_device_upload_atlas(image, w, h);
+    nk_font_atlas_end(&sdl.atlas, nk_handle_ptr(sdl.ogl.font_tex), &sdl.ogl.tex_null);
+    if (sdl.atlas.default_font)
+        nk_style_set_font(&sdl.ctx, &sdl.atlas.default_font->handle);
+}
+
+NK_API void
+nk_sdl_handle_grab(void)
+{
+    struct nk_context *ctx = &sdl.ctx;
+    if (ctx->input.mouse.grab) {
+        SDL_SetRelativeMouseMode(SDL_TRUE);
+    } else if (ctx->input.mouse.ungrab) {
+        /* better support for older SDL by setting mode first; causes an extra mouse motion event */
+        SDL_SetRelativeMouseMode(SDL_FALSE);
+        SDL_WarpMouseInWindow(sdl.win, (int)ctx->input.mouse.prev.x, (int)ctx->input.mouse.prev.y);
+    } else if (ctx->input.mouse.grabbed) {
+        ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
+        ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
+    }
+}
+
+NK_API int
+nk_sdl_handle_event(SDL_Event *evt)
+{
+    struct nk_context *ctx = &sdl.ctx;
+
+    switch(evt->type)
+    {
+        case SDL_KEYUP: /* KEYUP & KEYDOWN share same routine */
+        case SDL_KEYDOWN:
+            {
+                int down = evt->type == SDL_KEYDOWN;
+                const Uint8* state = SDL_GetKeyboardState(0);
+                switch(evt->key.keysym.sym)
+                {
+                    case SDLK_RSHIFT: /* RSHIFT & LSHIFT share same routine */
+                    case SDLK_LSHIFT:    nk_input_key(ctx, NK_KEY_SHIFT, down); break;
+                    case SDLK_DELETE:    nk_input_key(ctx, NK_KEY_DEL, down); break;
+                    case SDLK_RETURN:    nk_input_key(ctx, NK_KEY_ENTER, down); break;
+                    case SDLK_TAB:       nk_input_key(ctx, NK_KEY_TAB, down); break;
+                    case SDLK_BACKSPACE: nk_input_key(ctx, NK_KEY_BACKSPACE, down); break;
+                    case SDLK_HOME:      nk_input_key(ctx, NK_KEY_TEXT_START, down);
+                                         nk_input_key(ctx, NK_KEY_SCROLL_START, down); break;
+                    case SDLK_END:       nk_input_key(ctx, NK_KEY_TEXT_END, down);
+                                         nk_input_key(ctx, NK_KEY_SCROLL_END, down); break;
+                    case SDLK_PAGEDOWN:  nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down); break;
+                    case SDLK_PAGEUP:    nk_input_key(ctx, NK_KEY_SCROLL_UP, down); break;
+                    case SDLK_z:         nk_input_key(ctx, NK_KEY_TEXT_UNDO, down && state[SDL_SCANCODE_LCTRL]); break;
+                    case SDLK_r:         nk_input_key(ctx, NK_KEY_TEXT_REDO, down && state[SDL_SCANCODE_LCTRL]); break;
+                    case SDLK_c:         nk_input_key(ctx, NK_KEY_COPY, down && state[SDL_SCANCODE_LCTRL]); break;
+                    case SDLK_v:         nk_input_key(ctx, NK_KEY_PASTE, down && state[SDL_SCANCODE_LCTRL]); break;
+                    case SDLK_x:         nk_input_key(ctx, NK_KEY_CUT, down && state[SDL_SCANCODE_LCTRL]); break;
+                    case SDLK_b:         nk_input_key(ctx, NK_KEY_TEXT_LINE_START, down && state[SDL_SCANCODE_LCTRL]); break;
+                    case SDLK_e:         nk_input_key(ctx, NK_KEY_TEXT_LINE_END, down && state[SDL_SCANCODE_LCTRL]); break;
+                    case SDLK_UP:        nk_input_key(ctx, NK_KEY_UP, down); break;
+                    case SDLK_DOWN:      nk_input_key(ctx, NK_KEY_DOWN, down); break;
+                    case SDLK_LEFT:
+                        if (state[SDL_SCANCODE_LCTRL])
+                            nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, down);
+                        else nk_input_key(ctx, NK_KEY_LEFT, down);
+                        break;
+                    case SDLK_RIGHT:
+                        if (state[SDL_SCANCODE_LCTRL])
+                            nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, down);
+                        else nk_input_key(ctx, NK_KEY_RIGHT, down);
+                        break;
+                }
+            }
+            return 1;
+
+        case SDL_MOUSEBUTTONUP: /* MOUSEBUTTONUP & MOUSEBUTTONDOWN share same routine */
+        case SDL_MOUSEBUTTONDOWN:
+            {
+                int down = evt->type == SDL_MOUSEBUTTONDOWN;
+                const int x = evt->button.x, y = evt->button.y;
+                switch(evt->button.button)
+                {
+                    case SDL_BUTTON_LEFT:
+                        if (evt->button.clicks > 1)
+                            nk_input_button(ctx, NK_BUTTON_DOUBLE, x, y, down);
+                        nk_input_button(ctx, NK_BUTTON_LEFT, x, y, down); break;
+                    case SDL_BUTTON_MIDDLE: nk_input_button(ctx, NK_BUTTON_MIDDLE, x, y, down); break;
+                    case SDL_BUTTON_RIGHT:  nk_input_button(ctx, NK_BUTTON_RIGHT, x, y, down); break;
+                }
+            }
+            return 1;
+
+        case SDL_MOUSEMOTION:
+            if (ctx->input.mouse.grabbed) {
+                int x = (int)ctx->input.mouse.prev.x, y = (int)ctx->input.mouse.prev.y;
+                nk_input_motion(ctx, x + evt->motion.xrel, y + evt->motion.yrel);
+            }
+            else nk_input_motion(ctx, evt->motion.x, evt->motion.y);
+            return 1;
+
+        case SDL_TEXTINPUT:
+            {
+                nk_glyph glyph;
+                memcpy(glyph, evt->text.text, NK_UTF_SIZE);
+                nk_input_glyph(ctx, glyph);
+            }
+            return 1;
+
+        case SDL_MOUSEWHEEL:
+            nk_input_scroll(ctx,nk_vec2((float)evt->wheel.x,(float)evt->wheel.y));
+            return 1;
+    }
+    return 0;
+}
+
+NK_API
+void nk_sdl_shutdown(void)
+{
+    struct nk_sdl_device *dev = &sdl.ogl;
+    nk_font_atlas_clear(&sdl.atlas);
+    nk_free(&sdl.ctx);
+    SDL_DestroyTexture(dev->font_tex);
+    /* glDeleteTextures(1, &dev->font_tex); */
+    nk_buffer_free(&dev->cmds);
+    memset(&sdl, 0, sizeof(sdl));
+}
+
+#endif /* NK_SDL_RENDERER_IMPLEMENTATION */

external/tinyfiledialogs.h

@@ -0,0 +1,314 @@
+/* SPDX-License-Identifier: Zlib
+Copyright (c) 2014 - 2024 Guillaume Vareille http://ysengrin.com
+	 ____________________________________________________________________
+	|                                                                    |
+	| 100% compatible C C++  ->  You can rename tinfiledialogs.c as .cpp |
+	|____________________________________________________________________|
+
+********* TINY FILE DIALOGS OFFICIAL WEBSITE IS ON SOURCEFORGE *********
+  _________
+ /         \ tinyfiledialogs.h v3.18.2 [Jun 8, 2024]
+ |tiny file| Unique header file created [November 9, 2014]
+ | dialogs |
+ \____  ___/ http://tinyfiledialogs.sourceforge.net
+      \|     git clone http://git.code.sf.net/p/tinyfiledialogs/code tinyfd
+ ____________________________________________
+|                                            |
+|   email: tinyfiledialogs at ysengrin.com   |
+|____________________________________________|
+ ________________________________________________________________________________
+|  ____________________________________________________________________________  |
+| |                                                                            | |
+| |  - in tinyfiledialogs, char is UTF-8 by default (since v3.6)               | |
+| |                                                                            | |
+| | on windows:                                                                | |
+| |  - for UTF-16, use the wchar_t functions at the bottom of the header file  | |
+| |                                                                            | |
+| |  - _wfopen() requires wchar_t                                              | |
+| |  - fopen() uses char but expects ASCII or MBCS (not UTF-8)                 | |
+| |  - if you want char to be MBCS: set tinyfd_winUtf8 to 0                    | |
+| |                                                                            | |
+| |  - alternatively, tinyfiledialogs provides                                 | |
+| |                        functions to convert between UTF-8, UTF-16 and MBCS | |
+| |____________________________________________________________________________| |
+|________________________________________________________________________________|
+
+If you like tinyfiledialogs, please upvote my stackoverflow answer
+https://stackoverflow.com/a/47651444
+
+- License -
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+1. The origin of this software must not be misrepresented; you must not
+claim that you wrote the original software.  If you use this software
+in a product, an acknowledgment in the product documentation would be
+appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be
+misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+
+     __________________________________________
+    |  ______________________________________  |
+    | |                                      | |
+    | | DO NOT USE USER INPUT IN THE DIALOGS | |
+    | |______________________________________| |
+    |__________________________________________|
+*/
+
+#ifndef TINYFILEDIALOGS_H
+#define TINYFILEDIALOGS_H
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************************************/
+/**************************************** UTF-8 on Windows ********************************************/
+/******************************************************************************************************/
+#ifdef _WIN32
+/* On windows, if you want to use UTF-8 ( instead of the UTF-16/wchar_t functions at the end of this file )
+Make sure your code is really prepared for UTF-8 (on windows, functions like fopen() expect MBCS and not UTF-8) */
+extern int tinyfd_winUtf8; /* on windows char strings can be 1:UTF-8(default) or 0:MBCS */
+/* for MBCS change this to 0, in tinyfiledialogs.c or in your code */
+
+/* Here are some functions to help you convert between UTF-16 UTF-8 MBSC */
+char * tinyfd_utf8toMbcs(char const * aUtf8string);
+char * tinyfd_utf16toMbcs(wchar_t const * aUtf16string);
+wchar_t * tinyfd_mbcsTo16(char const * aMbcsString);
+char * tinyfd_mbcsTo8(char const * aMbcsString);
+wchar_t * tinyfd_utf8to16(char const * aUtf8string);
+char * tinyfd_utf16to8(wchar_t const * aUtf16string);
+#endif
+/******************************************************************************************************/
+/******************************************************************************************************/
+/******************************************************************************************************/
+
+/************* 3 funtions for C# (you don't need this in C or C++) : */
+char const * tinyfd_getGlobalChar(char const * aCharVariableName); /* returns NULL on error */
+int tinyfd_getGlobalInt(char const * aIntVariableName); /* returns -1 on error */
+int tinyfd_setGlobalInt(char const * aIntVariableName, int aValue); /* returns -1 on error */
+/* aCharVariableName: "tinyfd_version" "tinyfd_needs" "tinyfd_response"
+   aIntVariableName : "tinyfd_verbose" "tinyfd_silent" "tinyfd_allowCursesDialogs"
+				      "tinyfd_forceConsole" "tinyfd_assumeGraphicDisplay" "tinyfd_winUtf8"
+**************/
+
+extern char tinyfd_version[8]; /* contains tinyfd current version number */
+extern char tinyfd_needs[]; /* info about requirements */
+extern int tinyfd_verbose; /* 0 (default) or 1 : on unix, prints the command line calls */
+extern int tinyfd_silent; /* 1 (default) or 0 : on unix, hide errors and warnings from called dialogs */
+
+/** Curses dialogs are difficult to use and counter-intuitive.
+On windows they are only ascii and still uses the unix backslash ! **/
+extern int tinyfd_allowCursesDialogs; /* 0 (default) or 1 */
+
+extern int tinyfd_forceConsole;  /* 0 (default) or 1 */
+/* for unix & windows: 0 (graphic mode) or 1 (console mode).
+0: try to use a graphic solution, if it fails then it uses console mode.
+1: forces all dialogs into console mode even when an X server is present.
+   if enabled, it can use the package Dialog or dialog.exe.
+   on windows it only make sense for console applications */
+
+extern int tinyfd_assumeGraphicDisplay; /* 0 (default) or 1  */
+/* some systems don't set the environment variable DISPLAY even when a graphic display is present.
+set this to 1 to tell tinyfiledialogs to assume the existence of a graphic display */
+
+extern char tinyfd_response[1024];
+/* if you pass "tinyfd_query" as aTitle,
+the functions will not display the dialogs
+but will return 0 for console mode, 1 for graphic mode.
+tinyfd_response is then filled with the retain solution.
+possible values for tinyfd_response are (all lowercase)
+for graphic mode:
+  windows_wchar windows applescript kdialog zenity zenity3 yad matedialog
+  shellementary qarma python2-tkinter python3-tkinter python-dbus
+  perl-dbus gxmessage gmessage xmessage xdialog gdialog dunst
+for console mode:
+  dialog whiptail basicinput no_solution */
+
+void tinyfd_beep(void);
+
+int tinyfd_notifyPopup(
+	char const * aTitle, /* NULL or "" */
+	char const * aMessage, /* NULL or "" may contain \n \t */
+	char const * aIconType); /* "info" "warning" "error" */
+		/* return has only meaning for tinyfd_query */
+
+int tinyfd_messageBox(
+	char const * aTitle , /* NULL or "" */
+	char const * aMessage , /* NULL or "" may contain \n \t */
+	char const * aDialogType , /* "ok" "okcancel" "yesno" "yesnocancel" */
+	char const * aIconType , /* "info" "warning" "error" "question" */
+	int aDefaultButton ) ;
+		/* 0 for cancel/no , 1 for ok/yes , 2 for no in yesnocancel */
+
+char * tinyfd_inputBox(
+	char const * aTitle , /* NULL or "" */
+	char const * aMessage , /* NULL or "" (\n and \t have no effect) */
+	char const * aDefaultInput ) ;  /* NULL = passwordBox, "" = inputbox */
+		/* returns NULL on cancel */
+
+char * tinyfd_saveFileDialog(
+	char const * aTitle , /* NULL or "" */
+	char const * aDefaultPathAndOrFile , /* NULL or "" , ends with / to set only a directory */
+	int aNumOfFilterPatterns , /* 0  (1 in the following example) */
+	char const * const * aFilterPatterns , /* NULL or char const * lFilterPatterns[1]={"*.txt"} */
+	char const * aSingleFilterDescription ) ; /* NULL or "text files" */
+		/* returns NULL on cancel */
+
+char * tinyfd_openFileDialog(
+	char const * aTitle, /* NULL or "" */
+	char const * aDefaultPathAndOrFile, /* NULL or "" , ends with / to set only a directory */
+	int aNumOfFilterPatterns , /* 0 (2 in the following example) */
+	char const * const * aFilterPatterns, /* NULL or char const * lFilterPatterns[2]={"*.png","*.jpg"}; */
+	char const * aSingleFilterDescription, /* NULL or "image files" */
+	int aAllowMultipleSelects ) ; /* 0 or 1 */
+		/* in case of multiple files, the separator is | */
+		/* returns NULL on cancel */
+
+char * tinyfd_selectFolderDialog(
+	char const * aTitle, /* NULL or "" */
+	char const * aDefaultPath); /* NULL or "" */
+		/* returns NULL on cancel */
+
+char * tinyfd_colorChooser(
+	char const * aTitle, /* NULL or "" */
+	char const * aDefaultHexRGB, /* NULL or "" or "#FF0000" */
+	unsigned char const aDefaultRGB[3] , /* unsigned char lDefaultRGB[3] = { 0 , 128 , 255 }; */
+	unsigned char aoResultRGB[3] ) ; /* unsigned char lResultRGB[3]; */
+		/* aDefaultRGB is used only if aDefaultHexRGB is absent */
+		/* aDefaultRGB and aoResultRGB can be the same array */
+		/* returns NULL on cancel */
+		/* returns the hexcolor as a string "#FF0000" */
+		/* aoResultRGB also contains the result */
+
+
+/************ WINDOWS ONLY SECTION ************************/
+#ifdef _WIN32
+
+/* windows only - utf-16 version */
+int tinyfd_notifyPopupW(
+	wchar_t const * aTitle, /* NULL or L"" */
+	wchar_t const * aMessage, /* NULL or L"" may contain \n \t */
+	wchar_t const * aIconType); /* L"info" L"warning" L"error" */
+
+/* windows only - utf-16 version */
+int tinyfd_messageBoxW(
+	wchar_t const * aTitle, /* NULL or L"" */
+	wchar_t const * aMessage, /* NULL or L"" may contain \n \t */
+	wchar_t const * aDialogType, /* L"ok" L"okcancel" L"yesno" */
+	wchar_t const * aIconType, /* L"info" L"warning" L"error" L"question" */
+	int aDefaultButton ); /* 0 for cancel/no , 1 for ok/yes */
+		/* returns 0 for cancel/no , 1 for ok/yes */
+
+/* windows only - utf-16 version */
+wchar_t * tinyfd_inputBoxW(
+	wchar_t const * aTitle, /* NULL or L"" */
+	wchar_t const * aMessage, /* NULL or L"" (\n nor \t not respected) */
+	wchar_t const * aDefaultInput); /* NULL passwordBox, L"" inputbox */
+
+/* windows only - utf-16 version */
+wchar_t * tinyfd_saveFileDialogW(
+	wchar_t const * aTitle, /* NULL or L"" */
+	wchar_t const * aDefaultPathAndOrFile, /* NULL or L"" , ends with / to set only a directory */
+	int aNumOfFilterPatterns, /* 0 (1 in the following example) */
+	wchar_t const * const * aFilterPatterns, /* NULL or wchar_t const * lFilterPatterns[1]={L"*.txt"} */
+	wchar_t const * aSingleFilterDescription); /* NULL or L"text files" */
+		/* returns NULL on cancel */
+
+/* windows only - utf-16 version */
+wchar_t * tinyfd_openFileDialogW(
+	wchar_t const * aTitle, /* NULL or L"" */
+	wchar_t const * aDefaultPathAndOrFile, /* NULL or L"" , ends with / to set only a directory */
+	int aNumOfFilterPatterns , /* 0 (2 in the following example) */
+	wchar_t const * const * aFilterPatterns, /* NULL or wchar_t const * lFilterPatterns[2]={L"*.png","*.jpg"} */
+	wchar_t const * aSingleFilterDescription, /* NULL or L"image files" */
+	int aAllowMultipleSelects ) ; /* 0 or 1 */
+		/* in case of multiple files, the separator is | */
+		/* returns NULL on cancel */
+
+/* windows only - utf-16 version */
+wchar_t * tinyfd_selectFolderDialogW(
+	wchar_t const * aTitle, /* NULL or L"" */
+	wchar_t const * aDefaultPath); /* NULL or L"" */
+		/* returns NULL on cancel */
+
+/* windows only - utf-16 version */
+wchar_t * tinyfd_colorChooserW(
+	wchar_t const * aTitle, /* NULL or L"" */
+	wchar_t const * aDefaultHexRGB, /* NULL or L"#FF0000" */
+	unsigned char const aDefaultRGB[3], /* unsigned char lDefaultRGB[3] = { 0 , 128 , 255 }; */
+	unsigned char aoResultRGB[3]); /* unsigned char lResultRGB[3]; */
+		/* returns the hexcolor as a string L"#FF0000" */
+		/* aoResultRGB also contains the result */
+		/* aDefaultRGB is used only if aDefaultHexRGB is NULL */
+		/* aDefaultRGB and aoResultRGB can be the same array */
+		/* returns NULL on cancel */
+
+#endif /*_WIN32 */
+
+#ifdef	__cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /* TINYFILEDIALOGS_H */
+
+/*
+ ________________________________________________________________________________
+|  ____________________________________________________________________________  |
+| |                                                                            | |
+| | on windows:                                                                | |
+| |  - for UTF-16, use the wchar_t functions at the bottom of the header file  | |
+| |  - _wfopen() requires wchar_t                                              | |
+| |                                                                            | |
+| |  - in tinyfiledialogs, char is UTF-8 by default (since v3.6)               | |
+| |  - but fopen() expects MBCS (not UTF-8)                                    | |
+| |  - if you want char to be MBCS: set tinyfd_winUtf8 to 0                    | |
+| |                                                                            | |
+| |  - alternatively, tinyfiledialogs provides                                 | |
+| |                        functions to convert between UTF-8, UTF-16 and MBCS | |
+| |____________________________________________________________________________| |
+|________________________________________________________________________________|
+
+- This is not for ios nor android (it works in termux though).
+- The files can be renamed with extension ".cpp" as the code is 100% compatible C C++
+  (just comment out << extern "C" >> in the header file)
+- Windows is fully supported from XP to 10 (maybe even older versions)
+- C# & LUA via dll, see files in the folder EXTRAS
+- OSX supported from 10.4 to latest (maybe even older versions)
+- Do not use " and ' as the dialogs will be displayed with a warning
+  instead of the title, message, etc...
+- There's one file filter only, it may contain several patterns.
+- If no filter description is provided,
+  the list of patterns will become the description.
+- On windows link against Comdlg32.lib and Ole32.lib
+  (on windows the no linking claim is a lie)
+- On unix: it tries command line calls, so no such need (NO LINKING).
+- On unix you need one of the following:
+  applescript, kdialog, zenity, matedialog, shellementary, qarma, yad,
+  python (2 or 3)/tkinter/python-dbus (optional), Xdialog
+  or curses dialogs (opens terminal if running without console).
+- One of those is already included on most (if not all) desktops.
+- In the absence of those it will use gdialog, gxmessage or whiptail
+  with a textinputbox. If nothing is found, it switches to basic console input,
+  it opens a console if needed (requires xterm + bash).
+- for curses dialogs you must set tinyfd_allowCursesDialogs=1
+- You can query the type of dialog that will be used (pass "tinyfd_query" as aTitle)
+- String memory is preallocated statically for all the returned values.
+- File and path names are tested before return, they should be valid.
+- tinyfd_forceConsole=1; at run time, forces dialogs into console mode.
+- On windows, console mode only make sense for console applications.
+- On windows, console mode is not implemented for wchar_T UTF-16.
+- Mutiple selects are not possible in console mode.
+- The package dialog must be installed to run in curses dialogs in console mode.
+  It is already installed on most unix systems.
+- On osx, the package dialog can be installed via
+  http://macappstore.org/dialog or http://macports.org
+- On windows, for curses dialogs console mode,
+  dialog.exe should be copied somewhere on your executable path.
+  It can be found at the bottom of the following page:
+  http://andrear.altervista.org/home/cdialog.php
+*/

main.c

@@ -0,0 +1,41 @@
+#include "cli.h"
+#include <SDL2/SDL.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include "ui.h"
+
+int main(int argc, char **argv) {
+    CLIArgs args;
+    UIContext *ui;
+    int status;
+    bool running = false;
+
+    if (parseCLIArgs(argc, argv, &args)) {
+        return 1;
+    }
+
+    SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "0");
+    SDL_SetHint(SDL_HINT_WINDOWS_DPI_AWARENESS, "system");
+    if (SDL_Init(SDL_INIT_EVERYTHING)) {
+        fprintf(stderr, "Error initializing SDL: %s\n", SDL_GetError());
+        return 1;
+    }
+
+    ui = uiInit();
+    if (!ui) {
+        SDL_Quit();
+        return 1;
+    }
+
+    if (args.filename) {
+        if (uiLoadGame(ui, args.filename)) {
+            return 1;
+        }
+        running = true;
+    }
+
+    status = uiRun(ui, running);
+    uiDestroy(ui);
+    SDL_Quit();
+    return status;
+}

makefile

@@ -0,0 +1,54 @@
+CC?=gcc
+LD?=ld
+msys_version := $(if $(findstring Msys, $(shell uname -o)),$(word 1, $(subst ., ,$(shell uname -r))),0)
+
+ifeq ($(msys_version), 0)
+PKGFLAGS=$(shell pkg-config sdl2 --cflags --libs)
+BINLINKFLAGS=-z noexecstack
+else
+PKGFLAGS=$(shell pkg-config sdl2 --cflags --libs) -mwindows -mconsole -lcomdlg32 -lole32
+BINLINKFLAGS=
+endif
+
+.PHONY: clean build
+clean:
+	@rm -rf shrooms-vb output
+
+CFILES := $(foreach dir,./,$(notdir $(wildcard $(dir)/*.c)))
+BINFILES := $(foreach dir,assets/,$(notdir $(wildcard $(dir)/*.bin)))
+
+COBJS := $(CFILES:%.c=output/%.o)
+EXTOBJS = output/vb.o output/tinyfiledialogs.o
+BINOBJS := $(BINFILES:%.bin=output/%.o)
+
+OFILES := $(COBJS) $(EXTOBJS) $(BINOBJS)
+
+output/%.o: %.c
+	@mkdir -p output
+	@$(CC) -c -o $@ $< -I . \
+		-I shrooms-vb-core/core $(PKGFLAGS) \
+		-O3 -flto=auto -Wno-long-long \
+		-Werror -std=c90 -Wall -Wextra -Wpedantic
+
+output/vb.o: shrooms-vb-core/core/vb.c
+	@mkdir -p output
+	@$(CC) -c -o $@ $< -I . \
+		-I shrooms-vb-core/core \
+		-O3 -flto=auto -fno-strict-aliasing \
+		-Werror -std=c90 -Wall -Wextra -Wpedantic
+
+output/tinyfiledialogs.o: external/tinyfiledialogs.c
+	@mkdir -p output
+	@$(CC) -c -o $@ $< -I . \
+		-I external \
+		-O3 -flto=auto -fno-strict-aliasing -Wno-cast-function-type \
+		-Werror -std=c90 -Wall -Wextra -Wpedantic
+
+output/%.o: assets/%.bin
+	@mkdir -p output
+	@$(LD) -r -b binary $(BINLINKFLAGS) -o $@ $<
+
+shrooms-vb: $(OFILES)
+	@$(CC) -o $@ $(OFILES) $(PKGFLAGS) -lm -flto=auto
+
+build: shrooms-vb

nuklear.c

@@ -0,0 +1,3 @@
+#define NK_IMPLEMENTATION
+#define NK_SDL_RENDERER_IMPLEMENTATION
+#include "nuklear.h"

nuklear.h

@@ -0,0 +1,17 @@
+#ifndef SHROOMS_VB_NATIVE_NUKLEAR_
+#define SHROOMS_VB_NATIVE_NUKLEAR_
+
+#define NK_INCLUDE_FIXED_TYPES
+#define NK_INCLUDE_STANDARD_BOOL
+#define NK_INCLUDE_STANDARD_IO
+#define NK_INCLUDE_STANDARD_VARARGS
+#define NK_INCLUDE_DEFAULT_ALLOCATOR
+#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+#define NK_INCLUDE_FONT_BAKING
+#define NK_INCLUDE_DEFAULT_FONT
+#include "external/nuklear.h"
+
+#define NK_SDL_RENDERER_SDL_H <SDL2/SDL.h>
+#include "external/nuklear_sdl_renderer.h"
+
+#endif

scripts/do-bundle.sh

@@ -1,35 +0,0 @@
-# Set everything up
-rm -rf output
-mkdir -p output
-cargo clean
-
-# Build for linux
-cargo build --release
-cp target/release/lemur output/lemur-linux
-
-# Bundle for Linux
-cargo bundle --release --format deb
-cp target/release/bundle/deb/*.deb output
-
-# Build for Windows
-cargo build --release --target x86_64-pc-windows-msvc
-cp target/x86_64-pc-windows-msvc/release/lemur.exe output
-
-# Build for MacOS Intel
-cargo build --release --target x86_64-apple-darwin
-cp target/x86_64-apple-darwin/release/lemur output/lemur-osx-intel
-
-# Bundle for MacOS Intel
-cargo bundle --release --target x86_64-apple-darwin --format osx
-genisoimage -V lemur -D -R -apple -no-pad -o output/Lemur-Intel.dmg target/x86_64-apple-darwin/release/bundle/osx
-
-# Build for MacOS Apple Silicon
-cargo build --release --target aarch64-apple-darwin
-cp target/aarch64-apple-darwin/release/lemur output/lemur-osx-apple-silicon
-
-# Bundle for MacOS Apple Silicon
-cargo bundle --release --target aarch64-apple-darwin --format osx
-genisoimage -V lemur -D -R -apple -no-pad -o output/Lemur-Apple-Silicon.dmg target/aarch64-apple-darwin/release/bundle/osx
-
-# Clean up after ourselves
-cargo clean

scripts/release.sh

@@ -1,65 +0,0 @@
-version=$(cat Cargo.toml | sed -n -e '/version/ {s/.* = *//p;q}' | tr -d '"')
-
-read -p "You wanted to release $version, right? [Y/n] " -n 1 -r
-echo
-case "$REPLY" in
-    n|N ) exit 1;;
-esac
-
-if [ -z "${RELEASE_TOKEN}" ]; then
-    echo "Please set the RELEASE_TOKEN env var."
-    exit 1
-fi
-if ! command -v curl 2>&1 >/dev/null; then
-    echo "Please install curl."
-    exit 1
-fi
-if ! command -v jq 2>&1 >/dev/null; then
-    echo "Please install jq."
-    exit 1
-fi
-
-docker build -f build.Dockerfile -t lemur-build .
-MSYS_NO_PATHCONV=1 docker run -it --rm -v .:/app -w /app --entrypoint bash lemur-build /app/scripts/do-bundle.sh
-
-read -r -d EOF 'body' <<EOF
-## How to install
-
-The emulator can be found in the "Downloads" section of this release.
-
-### Windows users
-
-Download \`lemur.exe\`.
-
-### MacOS users
-
-If your Mac uses an Intel processor, download and install \`Lemur-Intel.dmg\`.
-
-If it uses Apple Silicon, download and install \`Lemur-Apple-Silicon.dmg\`.
-
-If you're not sure which to choose, use [this guide](https://support.apple.com/en-us/116943) to find out.
-
-### Linux users
-
-You can either download and run \`lemur-linux\`, or download and install the attached .deb file.
-EOF
-
-read -r -d EOF 'payload' <<EOF
-{
-  "body": $(echo "$body" | jq -Rsa .),
-  "draft": false,
-  "name": "v${version}",
-  "prerelease": false,
-  "tag_name": "v${version}"
-}
-EOF
-
-echo "Creating release..."
-response=$(curl -s --json "$payload" "https://git.virtual-boy.com/api/v1/repos/PVB/lemur/releases?token=$RELEASE_TOKEN")
-echo "$response"
-upload_url=$(echo "$response" | jq -r '.upload_url')
-for file in output/*; do
-    echo "Uploading $(basename "$file")..."
-    upload_res=$(curl -s -F "attachment=@$file" "$upload_url?name=$(basename "$file")&token=$RELEASE_TOKEN")
-    echo "$upload_res"
-done

shrooms-vb-core

@@ -1 +1 @@
-Subproject commit 18b2c589e6cacec5a0bd0f450cedf2f8fe3a2bc8
+Subproject commit ae22c95dbee3d0b338168bfdf98143e6eddc6c70

src/app.rs

@@ -1,423 +0,0 @@
-use std::{collections::HashSet, num::NonZero, sync::Arc, thread, time::Duration};
-
-use egui::{
-    ahash::{HashMap, HashMapExt},
-    Context, FontData, FontDefinitions, FontFamily, IconData, TextWrapMode, ViewportBuilder,
-    ViewportCommand, ViewportId, ViewportInfo,
-};
-use gilrs::{EventType, Gilrs};
-use winit::{
-    application::ApplicationHandler,
-    event::WindowEvent,
-    event_loop::{ActiveEventLoop, EventLoopProxy},
-    window::Window,
-};
-
-use crate::{
-    controller::ControllerManager,
-    emulator::{EmulatorClient, EmulatorCommand, SimId},
-    input::MappingProvider,
-    persistence::Persistence,
-    window::{AboutWindow, AppWindow, GameWindow, InputWindow},
-};
-
-fn load_icon() -> anyhow::Result<IconData> {
-    let bytes = include_bytes!("../assets/lemur-256x256.png");
-    let img = image::load_from_memory_with_format(bytes, image::ImageFormat::Png)?;
-    let rgba = img.into_rgba8();
-    Ok(IconData {
-        width: rgba.width(),
-        height: rgba.height(),
-        rgba: rgba.into_vec(),
-    })
-}
-
-pub struct Application {
-    icon: Option<Arc<IconData>>,
-    client: EmulatorClient,
-    proxy: EventLoopProxy<UserEvent>,
-    mappings: MappingProvider,
-    controllers: ControllerManager,
-    persistence: Persistence,
-    viewports: HashMap<ViewportId, Viewport>,
-    focused: Option<ViewportId>,
-}
-
-impl Application {
-    pub fn new(client: EmulatorClient, proxy: EventLoopProxy<UserEvent>) -> Self {
-        let icon = load_icon().ok().map(Arc::new);
-        let persistence = Persistence::new();
-        let mappings = MappingProvider::new(persistence.clone());
-        let controllers = ControllerManager::new(client.clone(), &mappings);
-        {
-            let mappings = mappings.clone();
-            let proxy = proxy.clone();
-            thread::spawn(|| process_gamepad_input(mappings, proxy));
-        }
-        Self {
-            icon,
-            client,
-            proxy,
-            mappings,
-            controllers,
-            persistence,
-            viewports: HashMap::new(),
-            focused: None,
-        }
-    }
-
-    fn open(&mut self, event_loop: &ActiveEventLoop, window: Box<dyn AppWindow>) {
-        let viewport_id = window.viewport_id();
-        if self.viewports.contains_key(&viewport_id) {
-            return;
-        }
-        self.viewports.insert(
-            viewport_id,
-            Viewport::new(event_loop, self.icon.clone(), window),
-        );
-    }
-}
-
-impl ApplicationHandler<UserEvent> for Application {
-    fn resumed(&mut self, event_loop: &ActiveEventLoop) {
-        let app = GameWindow::new(
-            self.client.clone(),
-            self.proxy.clone(),
-            self.persistence.clone(),
-            SimId::Player1,
-        );
-        let wrapper = Viewport::new(event_loop, self.icon.clone(), Box::new(app));
-        self.focused = Some(wrapper.id());
-        self.viewports.insert(wrapper.id(), wrapper);
-    }
-
-    fn window_event(
-        &mut self,
-        event_loop: &ActiveEventLoop,
-        window_id: winit::window::WindowId,
-        event: WindowEvent,
-    ) {
-        let Some(viewport) = self
-            .viewports
-            .values_mut()
-            .find(|v| v.window.id() == window_id)
-        else {
-            return;
-        };
-        let viewport_id = viewport.id();
-        match &event {
-            WindowEvent::KeyboardInput { event, .. } => {
-                self.controllers.handle_key_event(event);
-                viewport.app.handle_key_event(event);
-            }
-            WindowEvent::Focused(new_focused) => {
-                self.focused = new_focused.then_some(viewport_id);
-            }
-            _ => {}
-        }
-        let mut queue_redraw = false;
-        let mut inactive_viewports = HashSet::new();
-        match viewport.on_window_event(event) {
-            Some(Action::Redraw) => {
-                for viewport in self.viewports.values_mut() {
-                    match viewport.redraw(event_loop) {
-                        Some(Action::Redraw) => {
-                            queue_redraw = true;
-                        }
-                        Some(Action::Close) => {
-                            inactive_viewports.insert(viewport.id());
-                        }
-                        None => {}
-                    }
-                }
-            }
-            Some(Action::Close) => {
-                inactive_viewports.insert(viewport_id);
-            }
-            None => {}
-        }
-        self.viewports
-            .retain(|k, _| !inactive_viewports.contains(k));
-        match self.viewports.get(&ViewportId::ROOT) {
-            Some(viewport) => {
-                if queue_redraw {
-                    viewport.window.request_redraw();
-                }
-            }
-            None => event_loop.exit(),
-        }
-    }
-
-    fn device_event(
-        &mut self,
-        _event_loop: &ActiveEventLoop,
-        _device_id: winit::event::DeviceId,
-        event: winit::event::DeviceEvent,
-    ) {
-        if let winit::event::DeviceEvent::MouseMotion { delta } = event {
-            let Some(viewport) = self
-                .focused
-                .as_ref()
-                .and_then(|id| self.viewports.get_mut(id))
-            else {
-                return;
-            };
-            viewport.state.on_mouse_motion(delta);
-        }
-    }
-
-    fn user_event(&mut self, event_loop: &ActiveEventLoop, event: UserEvent) {
-        match event {
-            UserEvent::GamepadEvent(event) => {
-                self.controllers.handle_gamepad_event(&event);
-                let Some(viewport) = self
-                    .focused
-                    .as_ref()
-                    .and_then(|id| self.viewports.get_mut(id))
-                else {
-                    return;
-                };
-                viewport.app.handle_gamepad_event(&event);
-            }
-            UserEvent::OpenAbout => {
-                let about = AboutWindow;
-                self.open(event_loop, Box::new(about));
-            }
-            UserEvent::OpenInput => {
-                let input = InputWindow::new(self.mappings.clone());
-                self.open(event_loop, Box::new(input));
-            }
-            UserEvent::OpenPlayer2 => {
-                let p2 = GameWindow::new(
-                    self.client.clone(),
-                    self.proxy.clone(),
-                    self.persistence.clone(),
-                    SimId::Player2,
-                );
-                self.open(event_loop, Box::new(p2));
-            }
-        }
-    }
-
-    fn about_to_wait(&mut self, _event_loop: &ActiveEventLoop) {
-        if let Some(viewport) = self.viewports.get(&ViewportId::ROOT) {
-            viewport.window.request_redraw();
-        }
-    }
-
-    fn exiting(&mut self, _event_loop: &ActiveEventLoop) {
-        let (sender, receiver) = oneshot::channel();
-        if self.client.send_command(EmulatorCommand::Exit(sender)) {
-            if let Err(err) = receiver.recv_timeout(Duration::from_secs(5)) {
-                eprintln!("could not gracefully exit: {}", err);
-            }
-        }
-    }
-}
-
-struct Viewport {
-    painter: egui_wgpu::winit::Painter,
-    ctx: Context,
-    info: ViewportInfo,
-    commands: Vec<ViewportCommand>,
-    builder: ViewportBuilder,
-    window: Arc<Window>,
-    state: egui_winit::State,
-    app: Box<dyn AppWindow>,
-}
-impl Viewport {
-    pub fn new(
-        event_loop: &ActiveEventLoop,
-        icon: Option<Arc<IconData>>,
-        mut app: Box<dyn AppWindow>,
-    ) -> Self {
-        let mut painter = egui_wgpu::winit::Painter::new(
-            egui_wgpu::WgpuConfiguration {
-                present_mode: wgpu::PresentMode::AutoNoVsync,
-                ..egui_wgpu::WgpuConfiguration::default()
-            },
-            1,
-            None,
-            false,
-            true,
-        );
-
-        let ctx = Context::default();
-        let mut fonts = FontDefinitions::default();
-        fonts.font_data.insert(
-            "Selawik".into(),
-            FontData::from_static(include_bytes!("../assets/selawik.ttf")),
-        );
-        fonts
-            .families
-            .get_mut(&FontFamily::Proportional)
-            .unwrap()
-            .insert(0, "Selawik".into());
-        ctx.set_fonts(fonts);
-        ctx.style_mut(|s| {
-            s.wrap_mode = Some(TextWrapMode::Extend);
-            s.visuals.menu_rounding = Default::default();
-        });
-        egui_extras::install_image_loaders(&ctx);
-
-        let mut info = ViewportInfo::default();
-        let mut builder = app.initial_viewport();
-        if let Some(icon) = icon {
-            builder = builder.with_icon(icon);
-        }
-        let (window, state) = create_window_and_state(&ctx, event_loop, &builder, &mut painter);
-        egui_winit::update_viewport_info(&mut info, &ctx, &window, true);
-
-        app.on_init(painter.render_state().as_ref().unwrap());
-        Self {
-            painter,
-            ctx,
-            info,
-            commands: vec![],
-            builder,
-            window,
-            state,
-            app,
-        }
-    }
-
-    pub fn id(&self) -> ViewportId {
-        self.app.viewport_id()
-    }
-
-    pub fn on_window_event(&mut self, event: WindowEvent) -> Option<Action> {
-        let response = self.state.on_window_event(&self.window, &event);
-        egui_winit::update_viewport_info(
-            &mut self.info,
-            self.state.egui_ctx(),
-            &self.window,
-            false,
-        );
-
-        match event {
-            WindowEvent::RedrawRequested => Some(Action::Redraw),
-            WindowEvent::CloseRequested => Some(Action::Close),
-            WindowEvent::Resized(size) => {
-                let (Some(width), Some(height)) =
-                    (NonZero::new(size.width), NonZero::new(size.height))
-                else {
-                    return None;
-                };
-                self.painter
-                    .on_window_resized(ViewportId::ROOT, width, height);
-                None
-            }
-            _ if response.repaint => Some(Action::Redraw),
-            _ => None,
-        }
-    }
-
-    fn redraw(&mut self, event_loop: &ActiveEventLoop) -> Option<Action> {
-        let mut input = self.state.take_egui_input(&self.window);
-        input.viewports = std::iter::once((ViewportId::ROOT, self.info.clone())).collect();
-        let mut output = self.ctx.run(input, |ctx| {
-            self.app.show(ctx);
-        });
-        let clipped_primitives = self.ctx.tessellate(output.shapes, output.pixels_per_point);
-        self.painter.paint_and_update_textures(
-            ViewportId::ROOT,
-            output.pixels_per_point,
-            [0.0, 0.0, 0.0, 0.0],
-            &clipped_primitives,
-            &output.textures_delta,
-            false,
-        );
-
-        self.state
-            .handle_platform_output(&self.window, output.platform_output);
-
-        let Some(mut viewport_output) = output.viewport_output.remove(&ViewportId::ROOT) else {
-            return Some(Action::Close);
-        };
-
-        let (mut deferred_commands, recreate) = self.builder.patch(viewport_output.builder);
-        if recreate {
-            let (window, state) =
-                create_window_and_state(&self.ctx, event_loop, &self.builder, &mut self.painter);
-            egui_winit::update_viewport_info(&mut self.info, &self.ctx, &window, true);
-            self.window = window;
-            self.state = state;
-        }
-        self.commands.append(&mut deferred_commands);
-        self.commands.append(&mut viewport_output.commands);
-        egui_winit::process_viewport_commands(
-            &self.ctx,
-            &mut self.info,
-            std::mem::take(&mut self.commands),
-            &self.window,
-            &mut HashSet::default(),
-        );
-
-        if self.info.close_requested() {
-            Some(Action::Close)
-        } else {
-            Some(Action::Redraw)
-        }
-    }
-}
-
-impl Drop for Viewport {
-    fn drop(&mut self) {
-        self.app.on_destroy();
-    }
-}
-
-#[derive(Debug)]
-pub enum UserEvent {
-    GamepadEvent(gilrs::Event),
-    OpenAbout,
-    OpenInput,
-    OpenPlayer2,
-}
-
-pub enum Action {
-    Redraw,
-    Close,
-}
-
-fn create_window_and_state(
-    ctx: &Context,
-    event_loop: &ActiveEventLoop,
-    builder: &ViewportBuilder,
-    painter: &mut egui_wgpu::winit::Painter,
-) -> (Arc<Window>, egui_winit::State) {
-    pollster::block_on(painter.set_window(ViewportId::ROOT, None)).unwrap();
-    let window = Arc::new(egui_winit::create_window(ctx, event_loop, builder).unwrap());
-    pollster::block_on(painter.set_window(ViewportId::ROOT, Some(window.clone()))).unwrap();
-    let state = egui_winit::State::new(
-        ctx.clone(),
-        ViewportId::ROOT,
-        event_loop,
-        Some(window.scale_factor() as f32),
-        event_loop.system_theme(),
-        painter.max_texture_side(),
-    );
-    (window, state)
-}
-
-fn process_gamepad_input(mappings: MappingProvider, proxy: EventLoopProxy<UserEvent>) {
-    let Ok(mut gilrs) = Gilrs::new() else {
-        eprintln!("could not connect gamepad listener");
-        return;
-    };
-    while let Some(event) = gilrs.next_event_blocking(None) {
-        if event.event == EventType::Connected {
-            let Some(gamepad) = gilrs.connected_gamepad(event.id) else {
-                continue;
-            };
-            mappings.handle_gamepad_connect(&gamepad);
-        }
-        if event.event == EventType::Disconnected {
-            mappings.handle_gamepad_disconnect(event.id);
-        }
-        if proxy.send_event(UserEvent::GamepadEvent(event)).is_err() {
-            // main thread has closed! we done
-            return;
-        }
-    }
-}

src/audio.rs

@@ -1,103 +0,0 @@
-use std::time::Duration;
-
-use anyhow::{bail, Result};
-use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
-use itertools::Itertools;
-use rubato::{FftFixedInOut, Resampler};
-
-pub struct Audio {
-    #[allow(unused)]
-    stream: cpal::Stream,
-    sampler: FftFixedInOut<f32>,
-    input_buffer: Vec<Vec<f32>>,
-    output_buffer: Vec<Vec<f32>>,
-    sample_sink: rtrb::Producer<f32>,
-}
-
-impl Audio {
-    pub fn init() -> Result<Self> {
-        let host = cpal::default_host();
-        let Some(device) = host.default_output_device() else {
-            bail!("No output device available");
-        };
-        let Some(config) = device
-            .supported_output_configs()?
-            .find(|c| c.channels() == 2 && c.sample_format().is_float())
-        else {
-            bail!("No suitable output config available");
-        };
-        let mut config = config.with_max_sample_rate().config();
-        let sampler = FftFixedInOut::new(41700, config.sample_rate.0 as usize, 834, 2)?;
-        config.buffer_size = cpal::BufferSize::Fixed(sampler.output_frames_max() as u32);
-
-        let input_buffer = sampler.input_buffer_allocate(true);
-        let output_buffer = sampler.output_buffer_allocate(true);
-        let (sample_sink, mut sample_source) =
-            rtrb::RingBuffer::new(sampler.output_frames_max() * 4);
-
-        let stream = device.build_output_stream(
-            &config,
-            move |data: &mut [f32], _| {
-                let requested = data.len();
-                let chunk = match sample_source.read_chunk(data.len()) {
-                    Ok(c) => c,
-                    Err(rtrb::chunks::ChunkError::TooFewSlots(n)) => {
-                        sample_source.read_chunk(n).unwrap()
-                    }
-                };
-                let len = chunk.len();
-                let (first, second) = chunk.as_slices();
-                data[0..first.len()].copy_from_slice(first);
-                data[first.len()..len].copy_from_slice(second);
-                for rest in &mut data[len..requested] {
-                    *rest = 0.0;
-                }
-                chunk.commit_all();
-            },
-            move |err| eprintln!("stream error: {err}"),
-            None,
-        )?;
-        stream.play()?;
-        Ok(Self {
-            stream,
-            sampler,
-            input_buffer,
-            output_buffer,
-            sample_sink,
-        })
-    }
-
-    pub fn update(&mut self, samples: &[f32]) {
-        for sample in samples.chunks_exact(2) {
-            for (channel, value) in self.input_buffer.iter_mut().zip(sample) {
-                channel.push(*value);
-            }
-            if self.input_buffer[0].len() >= self.sampler.input_frames_next() {
-                let (_, output_samples) = self
-                    .sampler
-                    .process_into_buffer(&self.input_buffer, &mut self.output_buffer, None)
-                    .unwrap();
-
-                let chunk = match self.sample_sink.write_chunk_uninit(output_samples * 2) {
-                    Ok(c) => c,
-                    Err(rtrb::chunks::ChunkError::TooFewSlots(n)) => {
-                        self.sample_sink.write_chunk_uninit(n).unwrap()
-                    }
-                };
-                let interleaved = self.output_buffer[0]
-                    .iter()
-                    .interleave(self.output_buffer[1].iter())
-                    .cloned();
-                chunk.fill_from_iter(interleaved);
-
-                for channel in &mut self.input_buffer {
-                    channel.clear();
-                }
-            }
-        }
-
-        while self.sample_sink.slots() < self.sampler.output_frames_max() * 2 {
-            std::thread::sleep(Duration::from_micros(500));
-        }
-    }
-}

src/controller.rs

@@ -1,128 +0,0 @@
-use std::sync::{Arc, RwLock};
-
-use gilrs::{ev::Code, Event as GamepadEvent, EventType, GamepadId};
-use winit::{
-    event::{ElementState, KeyEvent},
-    keyboard::PhysicalKey,
-};
-
-use crate::{
-    emulator::{EmulatorClient, EmulatorCommand, SimId, VBKey},
-    input::{InputMapping, MappingProvider},
-};
-
-pub struct Controller {
-    pub sim_id: SimId,
-    state: VBKey,
-    mapping: Arc<RwLock<InputMapping>>,
-}
-
-impl Controller {
-    pub fn new(sim_id: SimId, mappings: &MappingProvider) -> Self {
-        Self {
-            sim_id,
-            state: VBKey::SGN,
-            mapping: mappings.for_sim(sim_id).clone(),
-        }
-    }
-
-    pub fn key_event(&mut self, event: &KeyEvent) -> Option<VBKey> {
-        let keys = self.map_keys(&event.physical_key)?;
-        match event.state {
-            ElementState::Pressed => self.update_state(keys, VBKey::empty()),
-            ElementState::Released => self.update_state(VBKey::empty(), keys),
-        }
-    }
-
-    pub fn gamepad_event(&mut self, event: &GamepadEvent) -> Option<VBKey> {
-        let (pressed, released) = match event.event {
-            EventType::ButtonPressed(_, code) => {
-                let mappings = self.map_button(&event.id, &code)?;
-                (mappings, VBKey::empty())
-            }
-            EventType::ButtonReleased(_, code) => {
-                let mappings = self.map_button(&event.id, &code)?;
-                (VBKey::empty(), mappings)
-            }
-            EventType::AxisChanged(_, value, code) => {
-                let (neg, pos) = self.map_axis(&event.id, &code)?;
-                let mut pressed = VBKey::empty();
-                let mut released = VBKey::empty();
-                if value < -0.75 {
-                    pressed = pressed.union(neg);
-                }
-                if value > 0.75 {
-                    pressed = pressed.union(pos);
-                }
-                if value > -0.65 {
-                    released = released.union(neg);
-                }
-                if value < 0.65 {
-                    released = released.union(pos);
-                }
-                (pressed, released)
-            }
-            _ => {
-                return None;
-            }
-        };
-        self.update_state(pressed, released)
-    }
-
-    fn update_state(&mut self, pressed: VBKey, released: VBKey) -> Option<VBKey> {
-        let old_state = self.state;
-        self.state = self.state.union(pressed).difference(released);
-        if self.state != old_state {
-            Some(self.state)
-        } else {
-            None
-        }
-    }
-
-    fn map_keys(&self, key: &PhysicalKey) -> Option<VBKey> {
-        self.mapping.read().unwrap().map_keyboard(key)
-    }
-
-    fn map_button(&self, id: &GamepadId, code: &Code) -> Option<VBKey> {
-        self.mapping.read().unwrap().map_button(id, code)
-    }
-
-    fn map_axis(&self, id: &GamepadId, code: &Code) -> Option<(VBKey, VBKey)> {
-        self.mapping.read().unwrap().map_axis(id, code)
-    }
-}
-
-pub struct ControllerManager {
-    client: EmulatorClient,
-    controllers: [Controller; 2],
-}
-
-impl ControllerManager {
-    pub fn new(client: EmulatorClient, mappings: &MappingProvider) -> Self {
-        Self {
-            client,
-            controllers: [
-                Controller::new(SimId::Player1, mappings),
-                Controller::new(SimId::Player2, mappings),
-            ],
-        }
-    }
-
-    pub fn handle_key_event(&mut self, event: &KeyEvent) {
-        for controller in &mut self.controllers {
-            if let Some(pressed) = controller.key_event(event) {
-                self.client
-                    .send_command(EmulatorCommand::SetKeys(controller.sim_id, pressed));
-            }
-        }
-    }
-
-    pub fn handle_gamepad_event(&mut self, event: &GamepadEvent) {
-        for controller in &mut self.controllers {
-            if let Some(pressed) = controller.gamepad_event(event) {
-                self.client
-                    .send_command(EmulatorCommand::SetKeys(controller.sim_id, pressed));
-            }
-        }
-    }
-}

src/emulator.rs

@@ -1,479 +0,0 @@
-use std::{
-    collections::HashMap,
-    fs::{self, File},
-    io::{Read, Seek, SeekFrom, Write},
-    path::{Path, PathBuf},
-    sync::{
-        atomic::{AtomicBool, AtomicUsize, Ordering},
-        mpsc::{self, RecvError, TryRecvError},
-        Arc,
-    },
-};
-
-use anyhow::Result;
-use egui_toast::{Toast, ToastKind, ToastOptions};
-
-use crate::{audio::Audio, graphics::TextureSink};
-pub use shrooms_vb_core::VBKey;
-use shrooms_vb_core::{Sim, EXPECTED_FRAME_SIZE};
-
-mod shrooms_vb_core;
-
-pub struct EmulatorBuilder {
-    rom: Option<PathBuf>,
-    commands: mpsc::Receiver<EmulatorCommand>,
-    sim_count: Arc<AtomicUsize>,
-    running: Arc<[AtomicBool; 2]>,
-    has_game: Arc<[AtomicBool; 2]>,
-    audio_on: Arc<[AtomicBool; 2]>,
-    linked: Arc<AtomicBool>,
-}
-
-#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
-pub enum SimId {
-    Player1,
-    Player2,
-}
-impl SimId {
-    pub const fn values() -> [Self; 2] {
-        [Self::Player1, Self::Player2]
-    }
-    pub const fn to_index(self) -> usize {
-        match self {
-            Self::Player1 => 0,
-            Self::Player2 => 1,
-        }
-    }
-}
-
-struct Cart {
-    rom_path: PathBuf,
-    rom: Vec<u8>,
-    sram_file: File,
-    sram: Vec<u8>,
-}
-
-impl Cart {
-    fn load(rom_path: &Path, sim_id: SimId) -> Result<Self> {
-        let rom = fs::read(rom_path)?;
-
-        let mut sram_file = File::options()
-            .read(true)
-            .write(true)
-            .create(true)
-            .truncate(false)
-            .open(sram_path(rom_path, sim_id))?;
-        sram_file.set_len(8 * 1024)?;
-
-        let mut sram = vec![];
-        sram_file.read_to_end(&mut sram)?;
-        Ok(Cart {
-            rom_path: rom_path.to_path_buf(),
-            rom,
-            sram_file,
-            sram,
-        })
-    }
-}
-
-fn sram_path(rom_path: &Path, sim_id: SimId) -> PathBuf {
-    match sim_id {
-        SimId::Player1 => rom_path.with_extension("p1.sram"),
-        SimId::Player2 => rom_path.with_extension("p2.sram"),
-    }
-}
-
-impl EmulatorBuilder {
-    pub fn new() -> (Self, EmulatorClient) {
-        let (queue, commands) = mpsc::channel();
-        let builder = Self {
-            rom: None,
-            commands,
-            sim_count: Arc::new(AtomicUsize::new(0)),
-            running: Arc::new([AtomicBool::new(false), AtomicBool::new(false)]),
-            has_game: Arc::new([AtomicBool::new(false), AtomicBool::new(false)]),
-            audio_on: Arc::new([AtomicBool::new(true), AtomicBool::new(true)]),
-            linked: Arc::new(AtomicBool::new(false)),
-        };
-        let client = EmulatorClient {
-            queue,
-            sim_count: builder.sim_count.clone(),
-            running: builder.running.clone(),
-            has_game: builder.has_game.clone(),
-            audio_on: builder.audio_on.clone(),
-            linked: builder.linked.clone(),
-        };
-        (builder, client)
-    }
-
-    pub fn with_rom(self, path: &Path) -> Self {
-        Self {
-            rom: Some(path.into()),
-            ..self
-        }
-    }
-
-    pub fn build(self) -> Result<Emulator> {
-        let mut emulator = Emulator::new(
-            self.commands,
-            self.sim_count,
-            self.running,
-            self.has_game,
-            self.audio_on,
-            self.linked,
-        )?;
-        if let Some(path) = self.rom {
-            emulator.load_cart(SimId::Player1, &path)?;
-        }
-        Ok(emulator)
-    }
-}
-
-pub struct Emulator {
-    sims: Vec<Sim>,
-    carts: [Option<Cart>; 2],
-    audio: Audio,
-    commands: mpsc::Receiver<EmulatorCommand>,
-    sim_count: Arc<AtomicUsize>,
-    running: Arc<[AtomicBool; 2]>,
-    has_game: Arc<[AtomicBool; 2]>,
-    audio_on: Arc<[AtomicBool; 2]>,
-    linked: Arc<AtomicBool>,
-    renderers: HashMap<SimId, TextureSink>,
-    messages: HashMap<SimId, mpsc::Sender<Toast>>,
-}
-
-impl Emulator {
-    fn new(
-        commands: mpsc::Receiver<EmulatorCommand>,
-        sim_count: Arc<AtomicUsize>,
-        running: Arc<[AtomicBool; 2]>,
-        has_game: Arc<[AtomicBool; 2]>,
-        audio_on: Arc<[AtomicBool; 2]>,
-        linked: Arc<AtomicBool>,
-    ) -> Result<Self> {
-        Ok(Self {
-            sims: vec![],
-            carts: [None, None],
-            audio: Audio::init()?,
-            commands,
-            sim_count,
-            running,
-            has_game,
-            audio_on,
-            linked,
-            renderers: HashMap::new(),
-            messages: HashMap::new(),
-        })
-    }
-
-    pub fn load_cart(&mut self, sim_id: SimId, path: &Path) -> Result<()> {
-        let cart = Cart::load(path, sim_id)?;
-        self.reset_sim(sim_id, Some(cart))?;
-        Ok(())
-    }
-
-    pub fn start_second_sim(&mut self, rom: Option<PathBuf>) -> Result<()> {
-        let rom_path = if let Some(path) = rom {
-            Some(path)
-        } else {
-            self.carts[0].as_ref().map(|c| c.rom_path.clone())
-        };
-        let cart = match rom_path {
-            Some(rom_path) => Some(Cart::load(&rom_path, SimId::Player2)?),
-            None => None,
-        };
-        self.reset_sim(SimId::Player2, cart)?;
-        self.link_sims();
-        Ok(())
-    }
-
-    fn reset_sim(&mut self, sim_id: SimId, new_cart: Option<Cart>) -> Result<()> {
-        self.save_sram(sim_id)?;
-
-        let index = sim_id.to_index();
-        while self.sims.len() <= index {
-            self.sims.push(Sim::new());
-        }
-        self.sim_count.store(self.sims.len(), Ordering::Relaxed);
-        let sim = &mut self.sims[index];
-        sim.reset();
-        if let Some(cart) = new_cart {
-            sim.load_cart(cart.rom.clone(), cart.sram.clone())?;
-            self.carts[index] = Some(cart);
-            self.has_game[index].store(true, Ordering::Release);
-        }
-        if self.has_game[index].load(Ordering::Acquire) {
-            self.running[index].store(true, Ordering::Release);
-        }
-        Ok(())
-    }
-
-    fn link_sims(&mut self) {
-        let (first, second) = self.sims.split_at_mut(1);
-        let Some(first) = first.first_mut() else {
-            return;
-        };
-        let Some(second) = second.first_mut() else {
-            return;
-        };
-        first.link(second);
-        self.linked.store(true, Ordering::Release);
-    }
-
-    fn unlink_sims(&mut self) {
-        let Some(first) = self.sims.first_mut() else {
-            return;
-        };
-        first.unlink();
-        self.linked.store(false, Ordering::Release);
-    }
-
-    pub fn pause_sim(&mut self, sim_id: SimId) -> Result<()> {
-        self.running[sim_id.to_index()].store(false, Ordering::Release);
-        self.save_sram(sim_id)
-    }
-
-    fn save_sram(&mut self, sim_id: SimId) -> Result<()> {
-        let sim = self.sims.get_mut(sim_id.to_index());
-        let cart = self.carts[sim_id.to_index()].as_mut();
-        if let (Some(sim), Some(cart)) = (sim, cart) {
-            sim.read_sram(&mut cart.sram);
-            cart.sram_file.seek(SeekFrom::Start(0))?;
-            cart.sram_file.write_all(&cart.sram)?;
-        }
-        Ok(())
-    }
-
-    pub fn stop_second_sim(&mut self) -> Result<()> {
-        self.save_sram(SimId::Player2)?;
-        self.renderers.remove(&SimId::Player2);
-        self.sims.truncate(1);
-        self.sim_count.store(self.sims.len(), Ordering::Relaxed);
-        self.running[SimId::Player2.to_index()].store(false, Ordering::Release);
-        self.has_game[SimId::Player2.to_index()].store(false, Ordering::Release);
-        self.linked.store(false, Ordering::Release);
-        Ok(())
-    }
-
-    pub fn run(&mut self) {
-        let mut eye_contents = vec![0u8; 384 * 224 * 2];
-        let mut audio_samples = vec![];
-        loop {
-            let p1_running = self.running[SimId::Player1.to_index()].load(Ordering::Acquire);
-            let p2_running = self.running[SimId::Player2.to_index()].load(Ordering::Acquire);
-            let mut idle = p1_running || p2_running;
-            if p1_running && p2_running {
-                Sim::emulate_many(&mut self.sims);
-            } else if p1_running {
-                self.sims[SimId::Player1.to_index()].emulate();
-            } else if p2_running {
-                self.sims[SimId::Player2.to_index()].emulate();
-            }
-
-            for sim_id in SimId::values() {
-                let Some(renderer) = self.renderers.get_mut(&sim_id) else {
-                    continue;
-                };
-                let Some(sim) = self.sims.get_mut(sim_id.to_index()) else {
-                    continue;
-                };
-                if sim.read_pixels(&mut eye_contents) {
-                    idle = false;
-                    if renderer.queue_render(&eye_contents).is_err() {
-                        self.renderers.remove(&sim_id);
-                    }
-                }
-            }
-            let p1_audio =
-                p1_running && self.audio_on[SimId::Player1.to_index()].load(Ordering::Acquire);
-            let p2_audio =
-                p2_running && self.audio_on[SimId::Player2.to_index()].load(Ordering::Acquire);
-            let weight = if p1_audio && p2_audio { 0.5 } else { 1.0 };
-            if p1_audio {
-                if let Some(sim) = self.sims.get_mut(SimId::Player1.to_index()) {
-                    sim.read_samples(&mut audio_samples, weight);
-                }
-            }
-            if p2_audio {
-                if let Some(sim) = self.sims.get_mut(SimId::Player2.to_index()) {
-                    sim.read_samples(&mut audio_samples, weight);
-                }
-            }
-            if audio_samples.is_empty() {
-                audio_samples.resize(EXPECTED_FRAME_SIZE, 0.0);
-            } else {
-                idle = false;
-            }
-            self.audio.update(&audio_samples);
-            audio_samples.clear();
-            if idle {
-                // The game is paused, and we have output all the video/audio we have.
-                // Block the thread until a new command comes in.
-                match self.commands.recv() {
-                    Ok(command) => self.handle_command(command),
-                    Err(RecvError) => {
-                        return;
-                    }
-                }
-            }
-            loop {
-                match self.commands.try_recv() {
-                    Ok(command) => self.handle_command(command),
-                    Err(TryRecvError::Empty) => {
-                        break;
-                    }
-                    Err(TryRecvError::Disconnected) => {
-                        return;
-                    }
-                }
-            }
-        }
-    }
-
-    fn handle_command(&mut self, command: EmulatorCommand) {
-        match command {
-            EmulatorCommand::ConnectToSim(sim_id, renderer, messages) => {
-                self.renderers.insert(sim_id, renderer);
-                self.messages.insert(sim_id, messages);
-            }
-            EmulatorCommand::LoadGame(sim_id, path) => {
-                if let Err(error) = self.load_cart(sim_id, &path) {
-                    self.report_error(sim_id, format!("Error loading rom: {error}"));
-                }
-            }
-            EmulatorCommand::StartSecondSim(path) => {
-                if let Err(error) = self.start_second_sim(path) {
-                    self.report_error(
-                        SimId::Player2,
-                        format!("Error starting second sim: {error}"),
-                    );
-                }
-            }
-            EmulatorCommand::StopSecondSim => {
-                if let Err(error) = self.stop_second_sim() {
-                    self.report_error(
-                        SimId::Player2,
-                        format!("Error stopping second sim: {error}"),
-                    );
-                }
-            }
-            EmulatorCommand::Pause => {
-                for sim_id in SimId::values() {
-                    if let Err(error) = self.pause_sim(sim_id) {
-                        self.report_error(sim_id, format!("Error pausing: {error}"));
-                    }
-                }
-            }
-            EmulatorCommand::Resume => {
-                for sim_id in SimId::values() {
-                    let index = sim_id.to_index();
-                    if self.has_game[index].load(Ordering::Acquire) {
-                        self.running[index].store(true, Ordering::Relaxed);
-                    }
-                }
-            }
-            EmulatorCommand::SetAudioEnabled(p1, p2) => {
-                self.audio_on[SimId::Player1.to_index()].store(p1, Ordering::Release);
-                self.audio_on[SimId::Player2.to_index()].store(p2, Ordering::Release);
-            }
-            EmulatorCommand::Link => {
-                self.link_sims();
-            }
-            EmulatorCommand::Unlink => {
-                self.unlink_sims();
-            }
-            EmulatorCommand::Reset(sim_id) => {
-                if let Err(error) = self.reset_sim(sim_id, None) {
-                    self.report_error(sim_id, format!("Error resetting sim: {error}"));
-                }
-            }
-            EmulatorCommand::SetKeys(sim_id, keys) => {
-                if let Some(sim) = self.sims.get_mut(sim_id.to_index()) {
-                    sim.set_keys(keys);
-                }
-            }
-            EmulatorCommand::Exit(done) => {
-                for sim_id in SimId::values() {
-                    if let Err(error) = self.save_sram(sim_id) {
-                        self.report_error(sim_id, format!("Error saving sram on exit: {error}"));
-                    }
-                }
-                let _ = done.send(());
-            }
-        }
-    }
-
-    fn report_error(&self, sim_id: SimId, message: String) {
-        let messages = self
-            .messages
-            .get(&sim_id)
-            .or_else(|| self.messages.get(&SimId::Player1));
-        if let Some(msg) = messages {
-            let toast = Toast::new()
-                .kind(ToastKind::Error)
-                .options(ToastOptions::default().duration_in_seconds(5.0))
-                .text(&message);
-            if msg.send(toast).is_ok() {
-                return;
-            }
-        }
-        eprintln!("{}", message);
-    }
-}
-
-#[derive(Debug)]
-pub enum EmulatorCommand {
-    ConnectToSim(SimId, TextureSink, mpsc::Sender<Toast>),
-    LoadGame(SimId, PathBuf),
-    StartSecondSim(Option<PathBuf>),
-    StopSecondSim,
-    Pause,
-    Resume,
-    SetAudioEnabled(bool, bool),
-    Link,
-    Unlink,
-    Reset(SimId),
-    SetKeys(SimId, VBKey),
-    Exit(oneshot::Sender<()>),
-}
-
-#[derive(Clone)]
-pub struct EmulatorClient {
-    queue: mpsc::Sender<EmulatorCommand>,
-    sim_count: Arc<AtomicUsize>,
-    running: Arc<[AtomicBool; 2]>,
-    has_game: Arc<[AtomicBool; 2]>,
-    audio_on: Arc<[AtomicBool; 2]>,
-    linked: Arc<AtomicBool>,
-}
-
-impl EmulatorClient {
-    pub fn has_player_2(&self) -> bool {
-        self.sim_count.load(Ordering::Acquire) == 2
-    }
-    pub fn is_running(&self, sim_id: SimId) -> bool {
-        self.running[sim_id.to_index()].load(Ordering::Acquire)
-    }
-    pub fn has_game(&self, sim_id: SimId) -> bool {
-        self.has_game[sim_id.to_index()].load(Ordering::Acquire)
-    }
-    pub fn are_sims_linked(&self) -> bool {
-        self.linked.load(Ordering::Acquire)
-    }
-    pub fn is_audio_enabled(&self, sim_id: SimId) -> bool {
-        self.audio_on[sim_id.to_index()].load(Ordering::Acquire)
-    }
-    pub fn send_command(&self, command: EmulatorCommand) -> bool {
-        match self.queue.send(command) {
-            Ok(()) => true,
-            Err(err) => {
-                eprintln!(
-                    "could not send command {:?} as emulator is shut down",
-                    err.0
-                );
-                false
-            }
-        }
-    }
-}

src/emulator/shrooms_vb_core.rs

@@ -1,320 +0,0 @@
-use std::{ffi::c_void, ptr, slice};
-
-use anyhow::{anyhow, Result};
-use bitflags::bitflags;
-use num_derive::{FromPrimitive, ToPrimitive};
-use serde::{Deserialize, Serialize};
-
-#[repr(C)]
-struct VB {
-    _data: [u8; 0],
-}
-
-#[allow(non_camel_case_types)]
-type c_int = i32;
-#[allow(non_camel_case_types)]
-type c_uint = u32;
-
-#[repr(u32)]
-#[derive(FromPrimitive, ToPrimitive)]
-enum VBDataType {
-    S8 = 0,
-    U8 = 1,
-    S16 = 2,
-    U16 = 3,
-    S32 = 4,
-    F32 = 5,
-}
-
-#[repr(i32)]
-#[derive(FromPrimitive, ToPrimitive)]
-enum VBOption {
-    PseudoHalt = 0,
-}
-
-bitflags! {
-    #[repr(transparent)]
-    #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
-    pub struct VBKey: u16 {
-        const PWR = 0x0001;
-        const SGN = 0x0002;
-        const A   = 0x0004;
-        const B   = 0x0008;
-        const RT  = 0x0010;
-        const LT  = 0x0020;
-        const RU  = 0x0040;
-        const RR  = 0x0080;
-        const LR  = 0x0100;
-        const LL  = 0x0200;
-        const LD  = 0x0400;
-        const LU  = 0x0800;
-        const STA = 0x1000;
-        const SEL = 0x2000;
-        const RL  = 0x4000;
-        const RD  = 0x8000;
-    }
-}
-
-type OnFrame = extern "C" fn(sim: *mut VB) -> c_int;
-
-#[link(name = "vb")]
-extern "C" {
-    #[link_name = "vbEmulate"]
-    fn vb_emulate(sim: *mut VB, cycles: *mut u32) -> c_int;
-    #[link_name = "vbEmulateEx"]
-    fn vb_emulate_ex(sims: *mut *mut VB, count: c_uint, cycles: *mut u32) -> c_int;
-    #[link_name = "vbGetCartRAM"]
-    fn vb_get_cart_ram(sim: *mut VB, size: *mut u32) -> *mut c_void;
-    #[link_name = "vbGetCartROM"]
-    fn vb_get_cart_rom(sim: *mut VB, size: *mut u32) -> *mut c_void;
-    #[link_name = "vbGetPixels"]
-    fn vb_get_pixels(
-        sim: *mut VB,
-        left: *mut c_void,
-        left_stride_x: c_int,
-        left_stride_y: c_int,
-        right: *mut c_void,
-        right_stride_x: c_int,
-        right_stride_y: c_int,
-    );
-    #[link_name = "vbGetSamples"]
-    fn vb_get_samples(
-        sim: *mut VB,
-        typ_: *mut VBDataType,
-        capacity: *mut c_uint,
-        position: *mut c_uint,
-    ) -> *mut c_void;
-    #[link_name = "vbGetUserData"]
-    fn vb_get_user_data(sim: *mut VB) -> *mut c_void;
-    #[link_name = "vbInit"]
-    fn vb_init(sim: *mut VB) -> *mut VB;
-    #[link_name = "vbReset"]
-    fn vb_reset(sim: *mut VB);
-    #[link_name = "vbSetCartRAM"]
-    fn vb_set_cart_ram(sim: *mut VB, sram: *mut c_void, size: u32) -> c_int;
-    #[link_name = "vbSetCartROM"]
-    fn vb_set_cart_rom(sim: *mut VB, rom: *mut c_void, size: u32) -> c_int;
-    #[link_name = "vbSetFrameCallback"]
-    fn vb_set_frame_callback(sim: *mut VB, on_frame: OnFrame);
-    #[link_name = "vbSetKeys"]
-    fn vb_set_keys(sim: *mut VB, keys: u16) -> u16;
-    #[link_name = "vbSetOption"]
-    fn vb_set_option(sim: *mut VB, key: VBOption, value: c_int);
-    #[link_name = "vbSetPeer"]
-    fn vb_set_peer(sim: *mut VB, peer: *mut VB);
-    #[link_name = "vbSetSamples"]
-    fn vb_set_samples(
-        sim: *mut VB,
-        samples: *mut c_void,
-        typ_: VBDataType,
-        capacity: c_uint,
-    ) -> c_int;
-    #[link_name = "vbSetUserData"]
-    fn vb_set_user_data(sim: *mut VB, tag: *mut c_void);
-    #[link_name = "vbSizeOf"]
-    fn vb_size_of() -> usize;
-}
-
-extern "C" fn on_frame(sim: *mut VB) -> i32 {
-    // SAFETY: the *mut VB owns its userdata.
-    // There is no way for the userdata to be null or otherwise invalid.
-    let data: &mut VBState = unsafe { &mut *vb_get_user_data(sim).cast() };
-    data.frame_seen = true;
-    1
-}
-
-const AUDIO_CAPACITY_SAMPLES: usize = 834 * 4;
-const AUDIO_CAPACITY_FLOATS: usize = AUDIO_CAPACITY_SAMPLES * 2;
-pub const EXPECTED_FRAME_SIZE: usize = 834 * 2;
-
-struct VBState {
-    frame_seen: bool,
-}
-
-#[repr(transparent)]
-pub struct Sim {
-    sim: *mut VB,
-}
-
-// SAFETY: the memory pointed to by sim is valid
-unsafe impl Send for Sim {}
-
-impl Sim {
-    pub fn new() -> Self {
-        // init the VB instance itself
-        let size = unsafe { vb_size_of() };
-        // allocate a vec of u64 so that this memory is 8-byte aligned
-        let memory = vec![0u64; size.div_ceil(4)];
-        let sim: *mut VB = Box::into_raw(memory.into_boxed_slice()).cast();
-        unsafe { vb_init(sim) };
-        unsafe { vb_set_option(sim, VBOption::PseudoHalt, 1) };
-        unsafe { vb_reset(sim) };
-
-        // set up userdata
-        let state = VBState { frame_seen: false };
-        unsafe { vb_set_user_data(sim, Box::into_raw(Box::new(state)).cast()) };
-        unsafe { vb_set_frame_callback(sim, on_frame) };
-
-        // set up audio buffer
-        let audio_buffer = vec![0.0f32; AUDIO_CAPACITY_FLOATS];
-        let samples: *mut c_void = Box::into_raw(audio_buffer.into_boxed_slice()).cast();
-        unsafe { vb_set_samples(sim, samples, VBDataType::F32, AUDIO_CAPACITY_SAMPLES as u32) };
-
-        Sim { sim }
-    }
-
-    pub fn reset(&mut self) {
-        unsafe { vb_reset(self.sim) };
-    }
-
-    pub fn load_cart(&mut self, mut rom: Vec<u8>, mut sram: Vec<u8>) -> Result<()> {
-        self.unload_cart();
-
-        rom.shrink_to_fit();
-        sram.shrink_to_fit();
-
-        let size = rom.len() as u32;
-        let rom = Box::into_raw(rom.into_boxed_slice()).cast();
-        let status = unsafe { vb_set_cart_rom(self.sim, rom, size) };
-        if status != 0 {
-            let _: Vec<u8> =
-                unsafe { Vec::from_raw_parts(rom.cast(), size as usize, size as usize) };
-            return Err(anyhow!("Invalid ROM size of {} bytes", size));
-        }
-
-        let size = sram.len() as u32;
-        let sram = Box::into_raw(sram.into_boxed_slice()).cast();
-        let status = unsafe { vb_set_cart_ram(self.sim, sram, size) };
-        if status != 0 {
-            let _: Vec<u8> =
-                unsafe { Vec::from_raw_parts(sram.cast(), size as usize, size as usize) };
-            return Err(anyhow!("Invalid SRAM size of {} bytes", size));
-        }
-
-        Ok(())
-    }
-
-    fn unload_cart(&mut self) {
-        let mut size = 0;
-        let rom = unsafe { vb_get_cart_rom(self.sim, &mut size) };
-        unsafe { vb_set_cart_rom(self.sim, ptr::null_mut(), 0) };
-        if !rom.is_null() {
-            let _: Vec<u8> =
-                unsafe { Vec::from_raw_parts(rom.cast(), size as usize, size as usize) };
-        }
-
-        let sram = unsafe { vb_get_cart_ram(self.sim, &mut size) };
-        unsafe { vb_set_cart_ram(self.sim, ptr::null_mut(), 0) };
-        if !sram.is_null() {
-            let _: Vec<u8> =
-                unsafe { Vec::from_raw_parts(sram.cast(), size as usize, size as usize) };
-        }
-    }
-
-    pub fn read_sram(&mut self, buffer: &mut [u8]) {
-        let mut size = 0;
-        let sram = unsafe { vb_get_cart_ram(self.sim, &mut size) };
-        if sram.is_null() {
-            return;
-        }
-        let bytes = unsafe { slice::from_raw_parts(sram.cast(), size as usize) };
-        buffer.copy_from_slice(bytes);
-    }
-
-    pub fn link(&mut self, peer: &mut Sim) {
-        unsafe { vb_set_peer(self.sim, peer.sim) };
-    }
-
-    pub fn unlink(&mut self) {
-        unsafe { vb_set_peer(self.sim, ptr::null_mut()) };
-    }
-
-    pub fn emulate(&mut self) {
-        let mut cycles = 20_000_000;
-        unsafe { vb_emulate(self.sim, &mut cycles) };
-    }
-
-    pub fn emulate_many(sims: &mut [Sim]) {
-        let mut cycles = 20_000_000;
-        let count = sims.len() as c_uint;
-        let sims = sims.as_mut_ptr().cast();
-        unsafe { vb_emulate_ex(sims, count, &mut cycles) };
-    }
-
-    pub fn read_pixels(&mut self, buffers: &mut [u8]) -> bool {
-        // SAFETY: the *mut VB owns its userdata.
-        // There is no way for the userdata to be null or otherwise invalid.
-        let data: &mut VBState = unsafe { &mut *vb_get_user_data(self.sim).cast() };
-        if !data.frame_seen {
-            return false;
-        }
-        data.frame_seen = false;
-
-        // the buffer must be big enough for our data
-        assert!(buffers.len() >= 384 * 224 * 2);
-        unsafe {
-            vb_get_pixels(
-                self.sim,
-                buffers.as_mut_ptr().cast(),
-                2,
-                384 * 2,
-                buffers.as_mut_ptr().offset(1).cast(),
-                2,
-                384 * 2,
-            );
-        };
-        true
-    }
-
-    pub fn read_samples(&mut self, samples: &mut Vec<f32>, weight: f32) {
-        let mut position = 0;
-        let ptr =
-            unsafe { vb_get_samples(self.sim, ptr::null_mut(), ptr::null_mut(), &mut position) };
-        // SAFETY: position is an offset in a buffer of (f32, f32). so, position * 2 is an offset in a buffer of f32.
-        let read_samples: &[f32] =
-            unsafe { slice::from_raw_parts(ptr.cast(), position as usize * 2) };
-        samples.resize(read_samples.len(), 0.0);
-        for (index, sample) in read_samples.iter().enumerate() {
-            samples[index] += sample * weight;
-        }
-
-        unsafe {
-            vb_set_samples(
-                self.sim,
-                ptr,
-                VBDataType::F32,
-                AUDIO_CAPACITY_SAMPLES as u32,
-            )
-        };
-    }
-
-    pub fn set_keys(&mut self, keys: VBKey) {
-        unsafe { vb_set_keys(self.sim, keys.bits()) };
-    }
-}
-
-impl Drop for Sim {
-    fn drop(&mut self) {
-        let ptr =
-            unsafe { vb_get_samples(self.sim, ptr::null_mut(), ptr::null_mut(), ptr::null_mut()) };
-        // SAFETY: the audio buffer originally came from a Vec<u32>
-        let floats: Vec<f32> = unsafe {
-            Vec::from_raw_parts(ptr.cast(), AUDIO_CAPACITY_FLOATS, AUDIO_CAPACITY_FLOATS)
-        };
-        drop(floats);
-
-        // SAFETY: the *mut VB owns its userdata.
-        // There is no way for the userdata to be null or otherwise invalid.
-        let ptr: *mut VBState = unsafe { vb_get_user_data(self.sim).cast() };
-        // SAFETY: we made this pointer ourselves, we can for sure free it
-        unsafe { drop(Box::from_raw(ptr)) };
-
-        // If we're linked to another sim, unlink from them.
-        unsafe { vb_set_peer(self.sim, ptr::null_mut()) };
-
-        let len = unsafe { vb_size_of() }.div_ceil(4);
-        // SAFETY: the sim's memory originally came from a Vec<u64>
-        let bytes: Vec<u64> = unsafe { Vec::from_raw_parts(self.sim.cast(), len, len) };
-        drop(bytes);
-    }
-}

src/game.wgsl

@@ -1,79 +0,0 @@
-// Vertex shader
-
-struct VertexOutput {
-    @builtin(position) clip_position: vec4<f32>,
-    @location(0) tex_coords: vec2<f32>,
-};
-
-@vertex
-fn vs_main(
-    @builtin(vertex_index) in_vertex_index: u32,
-) -> VertexOutput {
-    var out: VertexOutput;
-    var x: f32;
-    var y: f32;
-    switch in_vertex_index {
-        case 0u, 3u: {
-            x = -1.0;
-            y = 1.0;
-        }
-        case 1u: {
-            x = -1.0;
-            y = -1.0;
-        }
-        case 2u, 4u: {
-            x = 1.0;
-            y = -1.0;
-        }
-        default: {
-            x = 1.0;
-            y = 1.0;
-        }
-    }
-    out.clip_position = vec4<f32>(x, y, 0.0, 1.0);
-    out.tex_coords = vec2<f32>((x + 1.0) / 2.0, (1.0 - y) / 2.0);
-    return out;
-}
-
-// Fragment shader
-@group(0) @binding(0)
-var u_texture: texture_2d<f32>;
-@group(0) @binding(1)
-var u_sampler: sampler;
-
-struct Colors {
-    left: vec4<f32>,
-    right: vec4<f32>,
-};
-@group(0) @binding(2)
-var<uniform> colors: Colors;
-
-@fragment
-fn fs_lefteye(in: VertexOutput) -> @location(0) vec4<f32> {
-    let brt = textureSample(u_texture, u_sampler, in.tex_coords);
-    return colors.left * brt[0];
-}
-
-@fragment
-fn fs_righteye(in: VertexOutput) -> @location(0) vec4<f32> {
-    let brt = textureSample(u_texture, u_sampler, in.tex_coords);
-    return colors.left * brt[1];
-}
-
-@fragment
-fn fs_anaglyph(in: VertexOutput) -> @location(0) vec4<f32> {
-    let brt = textureSample(u_texture, u_sampler, in.tex_coords);
-    return colors.left * brt[0] + colors.right * brt[1];
-}
-
-@fragment
-fn fs_sidebyside(in: VertexOutput) -> @location(0) vec4<f32> {
-    var point = in.tex_coords;
-    point.x = (point.x * 2.0) % 1.0;
-    let brt = textureSample(u_texture, u_sampler, point);
-    if in.tex_coords.x < 0.5 {
-        return colors.left * brt[0];
-    } else {
-        return colors.left * brt[1];
-    };
-}

src/graphics.rs

@@ -1,143 +0,0 @@
-use std::{
-    sync::{
-        atomic::{AtomicU64, Ordering},
-        mpsc, Arc, Mutex, MutexGuard,
-    },
-    thread,
-};
-
-use anyhow::{bail, Result};
-use itertools::Itertools as _;
-use wgpu::{
-    Device, Extent3d, ImageCopyTexture, ImageDataLayout, Origin3d, Queue, Texture,
-    TextureDescriptor, TextureFormat, TextureUsages, TextureView, TextureViewDescriptor,
-};
-
-#[derive(Debug)]
-pub struct TextureSink {
-    buffers: Arc<BufferPool>,
-    sink: mpsc::Sender<u64>,
-}
-
-impl TextureSink {
-    pub fn new(device: &Device, queue: Arc<Queue>) -> (Self, TextureView) {
-        let texture = Self::create_texture(device);
-        let view = texture.create_view(&TextureViewDescriptor::default());
-        let buffers = Arc::new(BufferPool::new());
-        let (sink, source) = mpsc::channel();
-        let bufs = buffers.clone();
-        thread::spawn(move || {
-            let mut local_buf = vec![0; 384 * 224 * 2];
-            while let Ok(id) = source.recv() {
-                {
-                    let Some(bytes) = bufs.read(id) else {
-                        continue;
-                    };
-                    local_buf.copy_from_slice(bytes.as_slice());
-                }
-                Self::write_texture(&queue, &texture, local_buf.as_slice());
-            }
-        });
-        let sink = Self { buffers, sink };
-        (sink, view)
-    }
-
-    pub fn queue_render(&mut self, bytes: &[u8]) -> Result<()> {
-        let id = {
-            let (mut buf, id) = self.buffers.write()?;
-            buf.copy_from_slice(bytes);
-            id
-        };
-        self.sink.send(id)?;
-        Ok(())
-    }
-
-    fn create_texture(device: &Device) -> Texture {
-        let desc = TextureDescriptor {
-            label: Some("eyes"),
-            size: Extent3d {
-                width: 384,
-                height: 224,
-                depth_or_array_layers: 1,
-            },
-            mip_level_count: 1,
-            sample_count: 1,
-            dimension: wgpu::TextureDimension::D2,
-            format: TextureFormat::Rg8Unorm,
-            usage: TextureUsages::COPY_SRC
-                | TextureUsages::COPY_DST
-                | TextureUsages::TEXTURE_BINDING,
-            view_formats: &[TextureFormat::Rg8Unorm],
-        };
-        device.create_texture(&desc)
-    }
-
-    fn write_texture(queue: &Queue, texture: &Texture, bytes: &[u8]) {
-        let texture = ImageCopyTexture {
-            texture,
-            mip_level: 0,
-            origin: Origin3d::ZERO,
-            aspect: wgpu::TextureAspect::All,
-        };
-        let size = Extent3d {
-            width: 384,
-            height: 224,
-            depth_or_array_layers: 1,
-        };
-        let data_layout = ImageDataLayout {
-            offset: 0,
-            bytes_per_row: Some(384 * 2),
-            rows_per_image: Some(224),
-        };
-        queue.write_texture(texture, bytes, data_layout, size);
-    }
-}
-
-#[derive(Debug)]
-struct BufferPool {
-    buffers: [Buffer; 3],
-}
-impl BufferPool {
-    fn new() -> Self {
-        Self {
-            buffers: std::array::from_fn(|i| Buffer::new(i as u64)),
-        }
-    }
-
-    fn read(&self, id: u64) -> Option<MutexGuard<'_, Vec<u8>>> {
-        let buf = self
-            .buffers
-            .iter()
-            .find(|buf| buf.id.load(Ordering::Acquire) == id)?;
-        buf.data.lock().ok()
-    }
-
-    fn write(&self) -> Result<(MutexGuard<'_, Vec<u8>>, u64)> {
-        let (min, max) = self
-            .buffers
-            .iter()
-            .minmax_by_key(|buf| buf.id.load(Ordering::Acquire))
-            .into_option()
-            .unwrap();
-        let Ok(lock) = min.data.lock() else {
-            bail!("lock was poisoned")
-        };
-        let id = max.id.load(Ordering::Acquire) + 1;
-        min.id.store(id, Ordering::Release);
-        Ok((lock, id))
-    }
-}
-
-#[derive(Debug)]
-struct Buffer {
-    data: Mutex<Vec<u8>>,
-    id: AtomicU64,
-}
-impl Buffer {
-    fn new(id: u64) -> Self {
-        Self {
-            data: Mutex::new(vec![0; 384 * 224 * 2]),
-            id: AtomicU64::new(id),
-        }
-    }
-}

src/input.rs

@@ -1,456 +0,0 @@
-use std::{
-    collections::{hash_map::Entry, HashMap},
-    fmt::Display,
-    str::FromStr,
-    sync::{Arc, RwLock},
-};
-
-use anyhow::anyhow;
-use gilrs::{ev::Code, Axis, Button, Gamepad, GamepadId};
-use serde::{Deserialize, Serialize};
-use winit::keyboard::{KeyCode, PhysicalKey};
-
-use crate::{
-    emulator::{SimId, VBKey},
-    persistence::Persistence,
-};
-
-#[derive(Clone, PartialEq, Eq, Hash)]
-struct DeviceId(u16, u16);
-
-impl FromStr for DeviceId {
-    type Err = anyhow::Error;
-
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        let mut ids = s.split("-");
-        let vendor_id: u16 = ids.next().ok_or(anyhow!("missing vendor id"))?.parse()?;
-        let product_id: u16 = ids.next().ok_or(anyhow!("missing product id"))?.parse()?;
-        Ok(Self(vendor_id, product_id))
-    }
-}
-
-impl Display for DeviceId {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.write_fmt(format_args!("{}-{}", self.0, self.1))
-    }
-}
-
-#[derive(Clone)]
-pub struct GamepadInfo {
-    pub id: GamepadId,
-    pub name: String,
-    device_id: DeviceId,
-    pub bound_to: Option<SimId>,
-}
-
-pub trait Mappings {
-    fn mapping_names(&self) -> HashMap<VBKey, Vec<String>>;
-    fn clear_mappings(&mut self, key: VBKey);
-    fn clear_all_mappings(&mut self);
-    fn use_default_mappings(&mut self);
-}
-
-#[derive(Serialize, Deserialize)]
-pub struct GamepadMapping {
-    buttons: HashMap<Code, VBKey>,
-    axes: HashMap<Code, (VBKey, VBKey)>,
-    default_buttons: HashMap<Code, VBKey>,
-    default_axes: HashMap<Code, (VBKey, VBKey)>,
-}
-
-impl GamepadMapping {
-    fn for_gamepad(gamepad: &Gamepad) -> Self {
-        let mut default_buttons = HashMap::new();
-        let mut default_button = |btn: Button, key: VBKey| {
-            if let Some(code) = gamepad.button_code(btn) {
-                default_buttons.insert(code, key);
-            }
-        };
-        default_button(Button::South, VBKey::A);
-        default_button(Button::West, VBKey::B);
-        default_button(Button::RightTrigger, VBKey::RT);
-        default_button(Button::LeftTrigger, VBKey::LT);
-        default_button(Button::Start, VBKey::STA);
-        default_button(Button::Select, VBKey::SEL);
-
-        let mut default_axes = HashMap::new();
-        let mut default_axis = |axis: Axis, neg: VBKey, pos: VBKey| {
-            if let Some(code) = gamepad.axis_code(axis) {
-                default_axes.insert(code, (neg, pos));
-            }
-        };
-        default_axis(Axis::LeftStickX, VBKey::LL, VBKey::LR);
-        default_axis(Axis::LeftStickY, VBKey::LD, VBKey::LU);
-        default_axis(Axis::RightStickX, VBKey::RL, VBKey::RR);
-        default_axis(Axis::RightStickY, VBKey::RD, VBKey::RU);
-        default_axis(Axis::DPadX, VBKey::LL, VBKey::LR);
-        default_axis(Axis::DPadY, VBKey::LD, VBKey::LU);
-
-        Self {
-            buttons: default_buttons.clone(),
-            axes: default_axes.clone(),
-            default_buttons,
-            default_axes,
-        }
-    }
-
-    pub fn add_button_mapping(&mut self, key: VBKey, code: Code) {
-        let entry = self.buttons.entry(code).or_insert(VBKey::empty());
-        *entry = entry.union(key);
-    }
-
-    pub fn add_axis_neg_mapping(&mut self, key: VBKey, code: Code) {
-        let entry = self
-            .axes
-            .entry(code)
-            .or_insert((VBKey::empty(), VBKey::empty()));
-        entry.0 = entry.0.union(key);
-    }
-
-    pub fn add_axis_pos_mapping(&mut self, key: VBKey, code: Code) {
-        let entry = self
-            .axes
-            .entry(code)
-            .or_insert((VBKey::empty(), VBKey::empty()));
-        entry.1 = entry.1.union(key);
-    }
-
-    fn save_mappings(&self) -> PersistedGamepadMapping {
-        fn flatten<V: Copy>(values: &HashMap<Code, V>) -> Vec<(Code, V)> {
-            values.iter().map(|(k, v)| (*k, *v)).collect()
-        }
-        PersistedGamepadMapping {
-            buttons: flatten(&self.buttons),
-            axes: flatten(&self.axes),
-            default_buttons: flatten(&self.default_buttons),
-            default_axes: flatten(&self.default_axes),
-        }
-    }
-
-    fn from_mappings(mappings: &PersistedGamepadMapping) -> Self {
-        fn unflatten<V: Copy>(values: &[(Code, V)]) -> HashMap<Code, V> {
-            values.iter().map(|(k, v)| (*k, *v)).collect()
-        }
-        Self {
-            buttons: unflatten(&mappings.buttons),
-            axes: unflatten(&mappings.axes),
-            default_buttons: unflatten(&mappings.default_buttons),
-            default_axes: unflatten(&mappings.default_axes),
-        }
-    }
-}
-
-impl Mappings for GamepadMapping {
-    fn mapping_names(&self) -> HashMap<VBKey, Vec<String>> {
-        let mut results: HashMap<VBKey, Vec<String>> = HashMap::new();
-        for (axis, (left_keys, right_keys)) in &self.axes {
-            for key in left_keys.iter() {
-                results.entry(key).or_default().push(format!("-{axis}"));
-            }
-            for key in right_keys.iter() {
-                results.entry(key).or_default().push(format!("+{axis}"));
-            }
-        }
-        for (button, keys) in &self.buttons {
-            for key in keys.iter() {
-                results.entry(key).or_default().push(format!("{button}"));
-            }
-        }
-        results
-    }
-
-    fn clear_mappings(&mut self, key: VBKey) {
-        self.axes.retain(|_, (left, right)| {
-            *left = left.difference(key);
-            *right = right.difference(key);
-            !(left.is_empty() && right.is_empty())
-        });
-        self.buttons.retain(|_, keys| {
-            *keys = keys.difference(key);
-            !keys.is_empty()
-        });
-    }
-
-    fn clear_all_mappings(&mut self) {
-        self.axes.clear();
-        self.buttons.clear();
-    }
-
-    fn use_default_mappings(&mut self) {
-        self.axes = self.default_axes.clone();
-        self.buttons = self.default_buttons.clone();
-    }
-}
-
-#[derive(Default)]
-pub struct InputMapping {
-    keys: HashMap<PhysicalKey, VBKey>,
-    gamepads: HashMap<GamepadId, Arc<RwLock<GamepadMapping>>>,
-}
-
-impl InputMapping {
-    pub fn map_keyboard(&self, key: &PhysicalKey) -> Option<VBKey> {
-        self.keys.get(key).copied()
-    }
-
-    pub fn map_button(&self, id: &GamepadId, code: &Code) -> Option<VBKey> {
-        let mappings = self.gamepads.get(id)?.read().unwrap();
-        mappings.buttons.get(code).copied()
-    }
-
-    pub fn map_axis(&self, id: &GamepadId, code: &Code) -> Option<(VBKey, VBKey)> {
-        let mappings = self.gamepads.get(id)?.read().unwrap();
-        mappings.axes.get(code).copied()
-    }
-
-    pub fn add_keyboard_mapping(&mut self, key: VBKey, keyboard_key: PhysicalKey) {
-        let entry = self.keys.entry(keyboard_key).or_insert(VBKey::empty());
-        *entry = entry.union(key);
-    }
-
-    fn save_mappings(&self) -> PersistedKeyboardMapping {
-        PersistedKeyboardMapping {
-            keys: self.keys.iter().map(|(k, v)| (*k, *v)).collect(),
-        }
-    }
-
-    fn restore_mappings(&mut self, persisted: &PersistedKeyboardMapping) {
-        self.keys = persisted.keys.iter().map(|(k, v)| (*k, *v)).collect();
-    }
-}
-
-impl Mappings for InputMapping {
-    fn mapping_names(&self) -> HashMap<VBKey, Vec<String>> {
-        let mut results: HashMap<VBKey, Vec<String>> = HashMap::new();
-        for (keyboard_key, keys) in &self.keys {
-            let name = match keyboard_key {
-                PhysicalKey::Code(code) => format!("{code:?}"),
-                k => format!("{:?}", k),
-            };
-            for key in keys.iter() {
-                results.entry(key).or_default().push(name.clone());
-            }
-        }
-        results
-    }
-
-    fn clear_mappings(&mut self, key: VBKey) {
-        self.keys.retain(|_, keys| {
-            *keys = keys.difference(key);
-            !keys.is_empty()
-        });
-    }
-
-    fn clear_all_mappings(&mut self) {
-        self.keys.clear();
-    }
-
-    fn use_default_mappings(&mut self) {
-        self.keys.clear();
-        let mut default_key = |code, key| {
-            self.keys.insert(PhysicalKey::Code(code), key);
-        };
-        default_key(KeyCode::KeyA, VBKey::SEL);
-        default_key(KeyCode::KeyS, VBKey::STA);
-        default_key(KeyCode::KeyD, VBKey::B);
-        default_key(KeyCode::KeyF, VBKey::A);
-        default_key(KeyCode::KeyE, VBKey::LT);
-        default_key(KeyCode::KeyR, VBKey::RT);
-        default_key(KeyCode::KeyI, VBKey::RU);
-        default_key(KeyCode::KeyJ, VBKey::RL);
-        default_key(KeyCode::KeyK, VBKey::RD);
-        default_key(KeyCode::KeyL, VBKey::RR);
-        default_key(KeyCode::ArrowUp, VBKey::LU);
-        default_key(KeyCode::ArrowLeft, VBKey::LL);
-        default_key(KeyCode::ArrowDown, VBKey::LD);
-        default_key(KeyCode::ArrowRight, VBKey::LR);
-    }
-}
-
-#[derive(Clone)]
-pub struct MappingProvider {
-    persistence: Persistence,
-    device_mappings: Arc<RwLock<HashMap<DeviceId, Arc<RwLock<GamepadMapping>>>>>,
-    sim_mappings: HashMap<SimId, Arc<RwLock<InputMapping>>>,
-    gamepad_info: Arc<RwLock<HashMap<GamepadId, GamepadInfo>>>,
-}
-
-impl MappingProvider {
-    pub fn new(persistence: Persistence) -> Self {
-        let mut sim_mappings = HashMap::new();
-        let mut device_mappings = HashMap::new();
-
-        let mut p1_mappings = InputMapping::default();
-        let mut p2_mappings = InputMapping::default();
-
-        if let Ok(persisted) = persistence.load_config::<PersistedInputMappings>("mappings") {
-            p1_mappings.restore_mappings(&persisted.p1_keyboard);
-            p2_mappings.restore_mappings(&persisted.p2_keyboard);
-
-            for (device_id, mappings) in persisted.gamepads {
-                let Ok(device_id) = device_id.parse::<DeviceId>() else {
-                    continue;
-                };
-                let gamepad = GamepadMapping::from_mappings(&mappings);
-                device_mappings.insert(device_id, Arc::new(RwLock::new(gamepad)));
-            }
-        } else {
-            p1_mappings.use_default_mappings();
-        }
-
-        sim_mappings.insert(SimId::Player1, Arc::new(RwLock::new(p1_mappings)));
-        sim_mappings.insert(SimId::Player2, Arc::new(RwLock::new(p2_mappings)));
-        Self {
-            persistence,
-            device_mappings: Arc::new(RwLock::new(device_mappings)),
-            gamepad_info: Arc::new(RwLock::new(HashMap::new())),
-            sim_mappings,
-        }
-    }
-
-    pub fn for_sim(&self, sim_id: SimId) -> &Arc<RwLock<InputMapping>> {
-        self.sim_mappings.get(&sim_id).unwrap()
-    }
-
-    pub fn for_gamepad(&self, gamepad_id: GamepadId) -> Option<Arc<RwLock<GamepadMapping>>> {
-        let lock = self.gamepad_info.read().unwrap();
-        let device_id = lock.get(&gamepad_id)?.device_id.clone();
-        drop(lock);
-        let lock = self.device_mappings.read().unwrap();
-        lock.get(&device_id).cloned()
-    }
-
-    pub fn handle_gamepad_connect(&self, gamepad: &Gamepad) {
-        let device_id = DeviceId(
-            gamepad.vendor_id().unwrap_or_default(),
-            gamepad.product_id().unwrap_or_default(),
-        );
-        let mut lock = self.device_mappings.write().unwrap();
-        let mappings = match lock.entry(device_id.clone()) {
-            Entry::Vacant(entry) => {
-                let mappings = GamepadMapping::for_gamepad(gamepad);
-                entry.insert(Arc::new(RwLock::new(mappings)))
-            }
-            Entry::Occupied(entry) => entry.into_mut(),
-        }
-        .clone();
-        drop(lock);
-        let mut lock = self.gamepad_info.write().unwrap();
-        let bound_to = SimId::values()
-            .into_iter()
-            .find(|sim_id| lock.values().all(|info| info.bound_to != Some(*sim_id)));
-        if let Entry::Vacant(entry) = lock.entry(gamepad.id()) {
-            let info = GamepadInfo {
-                id: *entry.key(),
-                name: gamepad.name().to_string(),
-                device_id,
-                bound_to,
-            };
-            entry.insert(info);
-        }
-        drop(lock);
-        if let Some(sim_id) = bound_to {
-            self.for_sim(sim_id)
-                .write()
-                .unwrap()
-                .gamepads
-                .insert(gamepad.id(), mappings);
-        }
-    }
-
-    pub fn handle_gamepad_disconnect(&self, gamepad_id: GamepadId) {
-        let mut lock = self.gamepad_info.write().unwrap();
-        let Some(info) = lock.remove(&gamepad_id) else {
-            return;
-        };
-        if let Some(sim_id) = info.bound_to {
-            self.for_sim(sim_id)
-                .write()
-                .unwrap()
-                .gamepads
-                .remove(&gamepad_id);
-        }
-    }
-
-    pub fn assign_gamepad(&self, gamepad_id: GamepadId, sim_id: SimId) {
-        self.unassign_gamepad(gamepad_id);
-        let mut lock = self.gamepad_info.write().unwrap();
-        let Some(info) = lock.get_mut(&gamepad_id) else {
-            return;
-        };
-        info.bound_to = Some(sim_id);
-        let device_id = info.device_id.clone();
-        drop(lock);
-        let Some(device_mappings) = self
-            .device_mappings
-            .write()
-            .unwrap()
-            .get(&device_id)
-            .cloned()
-        else {
-            return;
-        };
-        self.for_sim(sim_id)
-            .write()
-            .unwrap()
-            .gamepads
-            .insert(gamepad_id, device_mappings);
-    }
-
-    pub fn unassign_gamepad(&self, gamepad_id: GamepadId) {
-        let mut lock = self.gamepad_info.write().unwrap();
-        let Some(info) = lock.get_mut(&gamepad_id) else {
-            return;
-        };
-        if let Some(sim_id) = info.bound_to {
-            let mut sim_mapping = self.for_sim(sim_id).write().unwrap();
-            sim_mapping.gamepads.remove(&gamepad_id);
-        }
-        info.bound_to = None;
-    }
-
-    pub fn gamepad_info(&self) -> Vec<GamepadInfo> {
-        self.gamepad_info
-            .read()
-            .unwrap()
-            .values()
-            .cloned()
-            .collect()
-    }
-
-    pub fn save(&self) {
-        let p1_keyboard = self.for_sim(SimId::Player1).read().unwrap().save_mappings();
-        let p2_keyboard = self.for_sim(SimId::Player2).read().unwrap().save_mappings();
-        let mut gamepads = HashMap::new();
-        for (device_id, gamepad) in self.device_mappings.read().unwrap().iter() {
-            let mapping = gamepad.read().unwrap().save_mappings();
-            gamepads.insert(device_id.to_string(), mapping);
-        }
-        let persisted = PersistedInputMappings {
-            p1_keyboard,
-            p2_keyboard,
-            gamepads,
-        };
-        let _ = self.persistence.save_config("mappings", &persisted);
-    }
-}
-
-#[derive(Serialize, Deserialize)]
-struct PersistedInputMappings {
-    p1_keyboard: PersistedKeyboardMapping,
-    p2_keyboard: PersistedKeyboardMapping,
-    gamepads: HashMap<String, PersistedGamepadMapping>,
-}
-
-#[derive(Serialize, Deserialize)]
-struct PersistedKeyboardMapping {
-    keys: Vec<(PhysicalKey, VBKey)>,
-}
-
-#[derive(Serialize, Deserialize)]
-struct PersistedGamepadMapping {
-    buttons: Vec<(Code, VBKey)>,
-    axes: Vec<(Code, (VBKey, VBKey))>,
-    default_buttons: Vec<(Code, VBKey)>,
-    default_axes: Vec<(Code, (VBKey, VBKey))>,
-}

src/main.rs

@@ -1,105 +0,0 @@
-// hide console in release mode
-#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
-
-use std::{path::PathBuf, process, time::SystemTime};
-
-use anyhow::Result;
-use app::Application;
-use clap::Parser;
-use emulator::EmulatorBuilder;
-use thread_priority::{ThreadBuilder, ThreadPriority};
-use winit::event_loop::{ControlFlow, EventLoop};
-
-mod app;
-mod audio;
-mod controller;
-mod emulator;
-mod graphics;
-mod input;
-mod persistence;
-mod window;
-
-#[derive(Parser)]
-struct Args {
-    rom: Option<PathBuf>,
-}
-
-fn set_panic_handler() {
-    std::panic::set_hook(Box::new(|info| {
-        let mut message = String::new();
-        if let Some(msg) = info.payload().downcast_ref::<&str>() {
-            message += &format!("{}\n", msg);
-        } else if let Some(msg) = info.payload().downcast_ref::<String>() {
-            message += &format!("{}\n", msg);
-        }
-        if let Some(location) = info.location() {
-            message += &format!(
-                "    in file '{}' at line {}\n",
-                location.file(),
-                location.line()
-            );
-        }
-        let backtrace = std::backtrace::Backtrace::force_capture();
-        message += &format!("stack trace:\n{:#}\n", backtrace);
-
-        eprint!("{}", message);
-
-        let Some(project_dirs) = directories::ProjectDirs::from("com", "virtual-boy", "Lemur")
-        else {
-            return;
-        };
-        let data_dir = project_dirs.data_dir();
-        if std::fs::create_dir_all(data_dir).is_err() {
-            return;
-        }
-        let timestamp = SystemTime::now()
-            .duration_since(SystemTime::UNIX_EPOCH)
-            .unwrap()
-            .as_millis();
-        let logfile_name = format!("crash-{}.txt", timestamp);
-        let _ = std::fs::write(data_dir.join(logfile_name), message);
-    }));
-}
-
-#[cfg(windows)]
-fn set_process_priority_to_high() -> Result<()> {
-    use windows::Win32::{Foundation, System::Threading};
-    let process = unsafe { Threading::GetCurrentProcess() };
-    unsafe { Threading::SetPriorityClass(process, Threading::HIGH_PRIORITY_CLASS)? };
-    unsafe { Foundation::CloseHandle(process)? };
-    Ok(())
-}
-
-fn main() -> Result<()> {
-    set_panic_handler();
-
-    #[cfg(windows)]
-    set_process_priority_to_high()?;
-
-    let args = Args::parse();
-
-    let (mut builder, client) = EmulatorBuilder::new();
-    if let Some(path) = args.rom {
-        builder = builder.with_rom(&path);
-    }
-
-    ThreadBuilder::default()
-        .name("Emulator".to_owned())
-        .priority(ThreadPriority::Max)
-        .spawn_careless(move || {
-            let mut emulator = match builder.build() {
-                Ok(e) => e,
-                Err(err) => {
-                    eprintln!("Error initializing emulator: {err}");
-                    process::exit(1);
-                }
-            };
-            emulator.run();
-        })?;
-
-    let event_loop = EventLoop::with_user_event().build().unwrap();
-    event_loop.set_control_flow(ControlFlow::Poll);
-    let proxy = event_loop.create_proxy();
-    event_loop.run_app(&mut Application::new(client, proxy))?;
-    Ok(())
-}

src/persistence.rs

@@ -1,46 +0,0 @@
-use std::{fs, path::PathBuf};
-
-use anyhow::{bail, Result};
-use directories::ProjectDirs;
-use serde::{Deserialize, Serialize};
-
-#[derive(Clone)]
-pub struct Persistence {
-    dirs: Option<Dirs>,
-}
-
-impl Persistence {
-    pub fn new() -> Self {
-        Self { dirs: init_dirs() }
-    }
-
-    pub fn save_config<T: Serialize>(&self, file: &str, data: &T) -> Result<()> {
-        if let Some(dirs) = self.dirs.as_ref() {
-            let bytes = serde_json::to_vec_pretty(data)?;
-            let filename = dirs.config_dir.join(file).with_extension("json");
-            fs::write(&filename, bytes)?;
-        }
-        Ok(())
-    }
-
-    pub fn load_config<T: for<'a> Deserialize<'a>>(&self, file: &str) -> Result<T> {
-        let Some(dirs) = self.dirs.as_ref() else {
-            bail!("config directory not found");
-        };
-        let filename = dirs.config_dir.join(file).with_extension("json");
-        let bytes = fs::read(filename)?;
-        Ok(serde_json::from_slice(&bytes)?)
-    }
-}
-
-#[derive(Clone)]
-struct Dirs {
-    config_dir: PathBuf,
-}
-
-fn init_dirs() -> Option<Dirs> {
-    let dirs = ProjectDirs::from("com", "virtual-boy", "Lemur")?;
-    let config_dir = dirs.config_dir().to_path_buf();
-    fs::create_dir_all(&config_dir).ok()?;
-    Some(Dirs { config_dir })
-}

src/window.rs

@@ -1,26 +0,0 @@
-pub use about::AboutWindow;
-use egui::{Context, ViewportBuilder, ViewportId};
-pub use game::GameWindow;
-pub use input::InputWindow;
-use winit::event::KeyEvent;
-
-mod about;
-mod game;
-mod game_screen;
-mod input;
-
-pub trait AppWindow {
-    fn viewport_id(&self) -> ViewportId;
-    fn initial_viewport(&self) -> ViewportBuilder;
-    fn show(&mut self, ctx: &Context);
-    fn on_init(&mut self, render_state: &egui_wgpu::RenderState) {
-        let _ = render_state;
-    }
-    fn on_destroy(&mut self) {}
-    fn handle_key_event(&mut self, event: &KeyEvent) {
-        let _ = event;
-    }
-    fn handle_gamepad_event(&mut self, event: &gilrs::Event) {
-        let _ = event;
-    }
-}

src/window/about.rs

@@ -1,31 +0,0 @@
-use egui::{CentralPanel, Context, Image, ViewportBuilder, ViewportId};
-
-use super::AppWindow;
-
-pub struct AboutWindow;
-
-impl AppWindow for AboutWindow {
-    fn viewport_id(&self) -> ViewportId {
-        ViewportId::from_hash_of("About")
-    }
-
-    fn initial_viewport(&self) -> ViewportBuilder {
-        ViewportBuilder::default()
-            .with_title("About Lemur")
-            .with_inner_size((300.0, 200.0))
-    }
-
-    fn show(&mut self, ctx: &Context) {
-        CentralPanel::default().show(ctx, |ui| {
-            ui.vertical_centered(|ui| {
-                ui.label("Lemur Virtual Boy Emulator");
-                ui.label(format!("Version {}", env!("CARGO_PKG_VERSION")));
-                ui.hyperlink("https://git.virtual-boy.com/PVB/lemur");
-                let logo = Image::new(egui::include_image!("../../assets/lemur-256x256.png"))
-                    .max_width(256.0)
-                    .maintain_aspect_ratio(true);
-                ui.add(logo);
-            });
-        });
-    }
-}

src/window/game.rs

@@ -1,449 +0,0 @@
-use std::sync::mpsc;
-
-use crate::{
-    app::UserEvent,
-    emulator::{EmulatorClient, EmulatorCommand, SimId},
-    persistence::Persistence,
-};
-use egui::{
-    ecolor::HexColor, menu, Align2, Button, CentralPanel, Color32, Context, Direction, Frame,
-    Layout, Response, Sense, TopBottomPanel, Ui, Vec2, ViewportBuilder, ViewportCommand,
-    ViewportId, WidgetText, Window,
-};
-use egui_toast::{Toast, Toasts};
-use serde::{Deserialize, Serialize};
-use winit::event_loop::EventLoopProxy;
-
-use super::{
-    game_screen::{DisplayMode, GameScreen},
-    AppWindow,
-};
-
-const COLOR_PRESETS: [[Color32; 2]; 3] = [
-    [
-        Color32::from_rgb(0xff, 0x00, 0x00),
-        Color32::from_rgb(0x00, 0xc6, 0xf0),
-    ],
-    [
-        Color32::from_rgb(0x00, 0xb4, 0x00),
-        Color32::from_rgb(0xc8, 0x00, 0xff),
-    ],
-    [
-        Color32::from_rgb(0xb4, 0x9b, 0x00),
-        Color32::from_rgb(0x00, 0x00, 0xff),
-    ],
-];
-
-pub struct GameWindow {
-    client: EmulatorClient,
-    proxy: EventLoopProxy<UserEvent>,
-    persistence: Persistence,
-    sim_id: SimId,
-    config: GameConfig,
-    screen: Option<GameScreen>,
-    messages: Option<mpsc::Receiver<Toast>>,
-    color_picker: Option<ColorPickerState>,
-}
-
-impl GameWindow {
-    pub fn new(
-        client: EmulatorClient,
-        proxy: EventLoopProxy<UserEvent>,
-        persistence: Persistence,
-        sim_id: SimId,
-    ) -> Self {
-        let config = load_config(&persistence, sim_id);
-        Self {
-            client,
-            proxy,
-            persistence,
-            sim_id,
-            config,
-            screen: None,
-            messages: None,
-            color_picker: None,
-        }
-    }
-
-    fn show_menu(&mut self, ctx: &Context, ui: &mut Ui) {
-        ui.menu_button("ROM", |ui| {
-            if ui.button("Open ROM").clicked() {
-                let rom = rfd::FileDialog::new()
-                    .add_filter("Virtual Boy ROMs", &["vb", "vbrom"])
-                    .pick_file();
-                if let Some(path) = rom {
-                    self.client
-                        .send_command(EmulatorCommand::LoadGame(SimId::Player1, path));
-                }
-                ui.close_menu();
-            }
-            if ui.button("Quit").clicked() {
-                ctx.send_viewport_cmd(ViewportCommand::Close);
-            }
-        });
-        ui.menu_button("Emulation", |ui| {
-            let has_game = self.client.has_game(self.sim_id);
-            if self.client.is_running(self.sim_id) {
-                if ui.add_enabled(has_game, Button::new("Pause")).clicked() {
-                    self.client.send_command(EmulatorCommand::Pause);
-                    ui.close_menu();
-                }
-            } else if ui.add_enabled(has_game, Button::new("Resume")).clicked() {
-                self.client.send_command(EmulatorCommand::Resume);
-                ui.close_menu();
-            }
-            if ui.add_enabled(has_game, Button::new("Reset")).clicked() {
-                self.client
-                    .send_command(EmulatorCommand::Reset(self.sim_id));
-                ui.close_menu();
-            }
-        });
-        ui.menu_button("Options", |ui| self.show_options_menu(ctx, ui));
-        ui.menu_button("Multiplayer", |ui| {
-            if self.sim_id == SimId::Player1
-                && !self.client.has_player_2()
-                && ui.button("Open Player 2").clicked()
-            {
-                self.client
-                    .send_command(EmulatorCommand::StartSecondSim(None));
-                self.proxy.send_event(UserEvent::OpenPlayer2).unwrap();
-                ui.close_menu();
-            }
-            if self.client.has_player_2() {
-                let linked = self.client.are_sims_linked();
-                if linked && ui.button("Unlink").clicked() {
-                    self.client.send_command(EmulatorCommand::Unlink);
-                    ui.close_menu();
-                }
-                if !linked && ui.button("Link").clicked() {
-                    self.client.send_command(EmulatorCommand::Link);
-                    ui.close_menu();
-                }
-            }
-        });
-        ui.menu_button("About", |ui| {
-            self.proxy.send_event(UserEvent::OpenAbout).unwrap();
-            ui.close_menu();
-        });
-    }
-
-    fn show_options_menu(&mut self, ctx: &Context, ui: &mut Ui) {
-        ui.menu_button("Video", |ui| {
-            ui.menu_button("Screen Size", |ui| {
-                let current_dims = ctx.input(|i| i.viewport().inner_rect.unwrap());
-                let current_dims = current_dims.max - current_dims.min;
-
-                for scale in 1..=4 {
-                    let label = format!("x{scale}");
-                    let scale = scale as f32;
-                    let dims = {
-                        let Vec2 { x, y } = self.config.display_mode.proportions();
-                        Vec2::new(x * scale, y * scale + 22.0)
-                    };
-                    if ui
-                        .selectable_button((current_dims - dims).length() < 1.0, label)
-                        .clicked()
-                    {
-                        ctx.send_viewport_cmd(ViewportCommand::InnerSize(dims));
-                        ui.close_menu();
-                    }
-                }
-            });
-
-            ui.menu_button("Display Mode", |ui| {
-                let old_proportions = self.config.display_mode.proportions();
-                let mut changed = false;
-                let mut display_mode = self.config.display_mode;
-                changed |= ui
-                    .selectable_option(&mut display_mode, DisplayMode::Anaglyph, "Anaglyph")
-                    .clicked();
-                changed |= ui
-                    .selectable_option(&mut display_mode, DisplayMode::LeftEye, "Left Eye")
-                    .clicked();
-                changed |= ui
-                    .selectable_option(&mut display_mode, DisplayMode::RightEye, "Right Eye")
-                    .clicked();
-                changed |= ui
-                    .selectable_option(&mut display_mode, DisplayMode::SideBySide, "Side by Side")
-                    .clicked();
-
-                if !changed {
-                    return;
-                }
-
-                let current_dims = {
-                    let viewport = ctx.input(|i| i.viewport().inner_rect.unwrap());
-                    viewport.max - viewport.min
-                };
-                let new_proportions = display_mode.proportions();
-                let scale = new_proportions / old_proportions;
-                if scale != Vec2::new(1.0, 1.0) {
-                    ctx.send_viewport_cmd(ViewportCommand::InnerSize(current_dims * scale));
-                }
-
-                self.update_config(|c| {
-                    c.display_mode = display_mode;
-                    c.dimensions = current_dims * scale;
-                });
-                ui.close_menu();
-            });
-            ui.menu_button("Colors", |ui| {
-                for preset in COLOR_PRESETS {
-                    if ui.color_pair_button(preset[0], preset[1]).clicked() {
-                        self.update_config(|c| c.colors = preset);
-                        ui.close_menu();
-                    }
-                }
-                ui.with_layout(ui.layout().with_cross_align(egui::Align::Center), |ui| {
-                    if ui.button("Custom").clicked() {
-                        let color_str = |color: Color32| {
-                            format!("{:02x}{:02x}{:02x}", color.r(), color.g(), color.b())
-                        };
-                        let is_running = self.client.is_running(self.sim_id);
-                        if is_running {
-                            self.client.send_command(EmulatorCommand::Pause);
-                        }
-                        let color_codes = [
-                            color_str(self.config.colors[0]),
-                            color_str(self.config.colors[1]),
-                        ];
-                        self.color_picker = Some(ColorPickerState {
-                            color_codes,
-                            just_opened: true,
-                            unpause_on_close: is_running,
-                        });
-                        ui.close_menu();
-                    }
-                });
-            });
-        });
-        ui.menu_button("Audio", |ui| {
-            let p1_enabled = self.client.is_audio_enabled(SimId::Player1);
-            let p2_enabled = self.client.is_audio_enabled(SimId::Player2);
-            if ui.selectable_button(p1_enabled, "Player 1").clicked() {
-                self.client
-                    .send_command(EmulatorCommand::SetAudioEnabled(!p1_enabled, p2_enabled));
-                ui.close_menu();
-            }
-            if ui.selectable_button(p2_enabled, "Player 2").clicked() {
-                self.client
-                    .send_command(EmulatorCommand::SetAudioEnabled(p1_enabled, !p2_enabled));
-                ui.close_menu();
-            }
-        });
-        ui.menu_button("Input", |ui| {
-            if ui.button("Bind Inputs").clicked() {
-                self.proxy.send_event(UserEvent::OpenInput).unwrap();
-                ui.close_menu();
-            }
-        });
-    }
-
-    fn show_color_picker(&mut self, ui: &mut Ui) {
-        let mut colors = self.config.colors;
-        let Some(state) = self.color_picker.as_mut() else {
-            return;
-        };
-        let (open, updated) = ui
-            .horizontal(|ui| {
-                let left_color = ui.color_picker(&mut colors[0], &mut state.color_codes[0]);
-                if state.just_opened {
-                    left_color.request_focus();
-                    state.just_opened = false;
-                }
-                let right_color = ui.color_picker(&mut colors[1], &mut state.color_codes[1]);
-                let open = left_color.has_focus() || right_color.has_focus();
-                let updated = left_color.changed() || right_color.changed();
-                (open, updated)
-            })
-            .inner;
-        if !open {
-            if state.unpause_on_close {
-                self.client.send_command(EmulatorCommand::Resume);
-            }
-            self.color_picker = None;
-        }
-        if updated {
-            self.update_config(|c| c.colors = colors);
-        }
-    }
-
-    fn update_config(&mut self, update: impl FnOnce(&mut GameConfig)) {
-        let mut new_config = self.config.clone();
-        update(&mut new_config);
-        if self.config != new_config {
-            let _ = self
-                .persistence
-                .save_config(config_filename(self.sim_id), &new_config);
-        }
-        self.config = new_config;
-    }
-}
-
-fn config_filename(sim_id: SimId) -> &'static str {
-    match sim_id {
-        SimId::Player1 => "config_p1",
-        SimId::Player2 => "config_p2",
-    }
-}
-
-fn load_config(persistence: &Persistence, sim_id: SimId) -> GameConfig {
-    if let Ok(config) = persistence.load_config(config_filename(sim_id)) {
-        return config;
-    }
-    GameConfig {
-        display_mode: DisplayMode::Anaglyph,
-        colors: COLOR_PRESETS[0],
-        dimensions: DisplayMode::Anaglyph.proportions() + Vec2::new(0.0, 22.0),
-    }
-}
-
-impl AppWindow for GameWindow {
-    fn viewport_id(&self) -> ViewportId {
-        match self.sim_id {
-            SimId::Player1 => ViewportId::ROOT,
-            SimId::Player2 => ViewportId::from_hash_of("Player2"),
-        }
-    }
-
-    fn initial_viewport(&self) -> ViewportBuilder {
-        ViewportBuilder::default()
-            .with_title("Lemur")
-            .with_inner_size(self.config.dimensions)
-    }
-
-    fn show(&mut self, ctx: &Context) {
-        let dimensions = {
-            let bounds = ctx.input(|i| i.viewport().inner_rect.unwrap());
-            bounds.max - bounds.min
-        };
-        self.update_config(|c| c.dimensions = dimensions);
-
-        let mut toasts = Toasts::new()
-            .anchor(Align2::LEFT_BOTTOM, (10.0, 10.0))
-            .direction(Direction::BottomUp);
-        if let Some(messages) = self.messages.as_mut() {
-            while let Ok(toast) = messages.try_recv() {
-                toasts.add(toast);
-            }
-        }
-        TopBottomPanel::top("menubar")
-            .exact_height(22.0)
-            .show(ctx, |ui| {
-                menu::bar(ui, |ui| {
-                    self.show_menu(ctx, ui);
-                });
-            });
-        if self.color_picker.is_some() {
-            Window::new("Color Picker")
-                .title_bar(false)
-                .resizable(false)
-                .anchor(Align2::CENTER_CENTER, Vec2::ZERO)
-                .show(ctx, |ui| {
-                    self.show_color_picker(ui);
-                });
-        }
-        let frame = Frame::central_panel(&ctx.style()).fill(Color32::BLACK);
-        CentralPanel::default().frame(frame).show(ctx, |ui| {
-            if let Some(screen) = self.screen.as_mut() {
-                screen.update(self.config.display_mode, self.config.colors);
-                ui.add(screen);
-            }
-        });
-        toasts.show(ctx);
-    }
-
-    fn on_init(&mut self, render_state: &egui_wgpu::RenderState) {
-        let (screen, sink) = GameScreen::init(render_state);
-        let (message_sink, message_source) = mpsc::channel();
-        self.client.send_command(EmulatorCommand::ConnectToSim(
-            self.sim_id,
-            sink,
-            message_sink,
-        ));
-        self.screen = Some(screen);
-        self.messages = Some(message_source);
-    }
-
-    fn on_destroy(&mut self) {
-        if self.sim_id == SimId::Player2 {
-            self.client.send_command(EmulatorCommand::StopSecondSim);
-        }
-    }
-}
-
-trait UiExt {
-    fn selectable_button(&mut self, selected: bool, text: impl Into<WidgetText>) -> Response;
-    fn selectable_option<T: Eq>(
-        &mut self,
-        current_value: &mut T,
-        selected_value: T,
-        text: impl Into<WidgetText>,
-    ) -> Response {
-        let response = self.selectable_button(*current_value == selected_value, text);
-        if response.clicked() {
-            *current_value = selected_value;
-        }
-        response
-    }
-
-    fn color_pair_button(&mut self, left: Color32, right: Color32) -> Response;
-
-    fn color_picker(&mut self, color: &mut Color32, hex: &mut String) -> Response;
-}
-
-impl UiExt for Ui {
-    fn selectable_button(&mut self, selected: bool, text: impl Into<WidgetText>) -> Response {
-        self.style_mut().visuals.widgets.inactive.bg_fill = Color32::TRANSPARENT;
-        self.style_mut().visuals.widgets.hovered.bg_fill = Color32::TRANSPARENT;
-        self.style_mut().visuals.widgets.active.bg_fill = Color32::TRANSPARENT;
-        let mut selected = selected;
-        self.checkbox(&mut selected, text)
-    }
-
-    fn color_pair_button(&mut self, left: Color32, right: Color32) -> Response {
-        let button_size = Vec2::new(60.0, 20.0);
-        let (rect, response) = self.allocate_at_least(button_size, Sense::click());
-        let center_x = rect.center().x;
-        let left_rect = rect.with_max_x(center_x);
-        self.painter().rect_filled(left_rect, 0.0, left);
-        let right_rect = rect.with_min_x(center_x);
-        self.painter().rect_filled(right_rect, 0.0, right);
-
-        let style = self.style().interact(&response);
-        self.painter().rect_stroke(rect, 0.0, style.fg_stroke);
-        response
-    }
-
-    fn color_picker(&mut self, color: &mut Color32, hex: &mut String) -> Response {
-        self.allocate_ui_with_layout(
-            Vec2::new(100.0, 130.0),
-            Layout::top_down_justified(egui::Align::Center),
-            |ui| {
-                let (rect, _) = ui.allocate_at_least(Vec2::new(100.0, 100.0), Sense::hover());
-                ui.painter().rect_filled(rect, 0.0, *color);
-                let resp = ui.text_edit_singleline(hex);
-                if resp.changed() {
-                    if let Ok(new_color) = HexColor::from_str_without_hash(hex) {
-                        *color = new_color.color();
-                    }
-                }
-                resp
-            },
-        )
-        .inner
-    }
-}
-
-struct ColorPickerState {
-    color_codes: [String; 2],
-    just_opened: bool,
-    unpause_on_close: bool,
-}
-
-#[derive(Serialize, Deserialize, Clone, PartialEq, Eq)]
-struct GameConfig {
-    display_mode: DisplayMode,
-    colors: [Color32; 2],
-    dimensions: Vec2,
-}

src/window/game_screen.rs

@@ -1,279 +0,0 @@
-use std::{collections::HashMap, sync::Arc};
-
-use egui::{Color32, Rgba, Vec2, Widget};
-use serde::{Deserialize, Serialize};
-use wgpu::{util::DeviceExt as _, BindGroup, BindGroupLayout, Buffer, RenderPipeline};
-
-use crate::graphics::TextureSink;
-
-pub struct GameScreen {
-    bind_group: Arc<BindGroup>,
-    color_buffer: Arc<Buffer>,
-    display_mode: DisplayMode,
-    colors: Colors,
-}
-
-impl GameScreen {
-    fn init_pipeline(render_state: &egui_wgpu::RenderState) {
-        let device = &render_state.device;
-
-        let bind_group_layout = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
-            label: Some("texture bind group layout"),
-            entries: &[
-                wgpu::BindGroupLayoutEntry {
-                    binding: 0,
-                    visibility: wgpu::ShaderStages::FRAGMENT,
-                    ty: wgpu::BindingType::Texture {
-                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
-                        view_dimension: wgpu::TextureViewDimension::D2,
-                        multisampled: false,
-                    },
-                    count: None,
-                },
-                wgpu::BindGroupLayoutEntry {
-                    binding: 1,
-                    visibility: wgpu::ShaderStages::FRAGMENT,
-                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
-                    count: None,
-                },
-                wgpu::BindGroupLayoutEntry {
-                    binding: 2,
-                    visibility: wgpu::ShaderStages::FRAGMENT,
-                    ty: wgpu::BindingType::Buffer {
-                        ty: wgpu::BufferBindingType::Uniform,
-                        has_dynamic_offset: false,
-                        min_binding_size: None,
-                    },
-                    count: None,
-                },
-            ],
-        });
-
-        let shader = device.create_shader_module(wgpu::include_wgsl!("../game.wgsl"));
-        let render_pipeline_layout =
-            device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
-                label: Some("render pipeline layout"),
-                bind_group_layouts: &[&bind_group_layout],
-                push_constant_ranges: &[],
-            });
-
-        let create_render_pipeline = |entry_point: &str| {
-            device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
-                label: Some("render pipeline"),
-                layout: Some(&render_pipeline_layout),
-                vertex: wgpu::VertexState {
-                    module: &shader,
-                    entry_point: "vs_main",
-                    buffers: &[],
-                    compilation_options: wgpu::PipelineCompilationOptions::default(),
-                },
-                fragment: Some(wgpu::FragmentState {
-                    module: &shader,
-                    entry_point,
-                    targets: &[Some(wgpu::ColorTargetState {
-                        format: wgpu::TextureFormat::Bgra8Unorm,
-                        blend: Some(wgpu::BlendState::REPLACE),
-                        write_mask: wgpu::ColorWrites::ALL,
-                    })],
-                    compilation_options: wgpu::PipelineCompilationOptions::default(),
-                }),
-                primitive: wgpu::PrimitiveState {
-                    topology: wgpu::PrimitiveTopology::TriangleList,
-                    strip_index_format: None,
-                    front_face: wgpu::FrontFace::Ccw,
-                    cull_mode: Some(wgpu::Face::Back),
-                    polygon_mode: wgpu::PolygonMode::Fill,
-                    unclipped_depth: false,
-                    conservative: false,
-                },
-                depth_stencil: None,
-                multisample: wgpu::MultisampleState {
-                    count: 1,
-                    mask: !0,
-                    alpha_to_coverage_enabled: false,
-                },
-                multiview: None,
-                cache: None,
-            })
-        };
-
-        let mut render_pipelines = HashMap::new();
-        render_pipelines.insert(DisplayMode::Anaglyph, create_render_pipeline("fs_anaglyph"));
-        render_pipelines.insert(DisplayMode::LeftEye, create_render_pipeline("fs_lefteye"));
-        render_pipelines.insert(DisplayMode::RightEye, create_render_pipeline("fs_righteye"));
-        render_pipelines.insert(
-            DisplayMode::SideBySide,
-            create_render_pipeline("fs_sidebyside"),
-        );
-
-        render_state
-            .renderer
-            .write()
-            .callback_resources
-            .insert(SharedGameScreenResources {
-                render_pipelines,
-                bind_group_layout,
-            });
-    }
-
-    pub fn init(render_state: &egui_wgpu::RenderState) -> (Self, TextureSink) {
-        Self::init_pipeline(render_state);
-
-        let device = &render_state.device;
-        let queue = &render_state.queue;
-
-        let (sink, texture_view) = TextureSink::new(device, queue.clone());
-        let sampler = device.create_sampler(&wgpu::SamplerDescriptor::default());
-        let colors = Colors::new(
-            Color32::from_rgb(0xff, 0x00, 0x00),
-            Color32::from_rgb(0x00, 0xc6, 0xf0),
-        );
-
-        let color_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
-            label: Some("colors"),
-            contents: bytemuck::bytes_of(&colors),
-            usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
-        });
-
-        let renderer = render_state.renderer.read();
-        let resources: &SharedGameScreenResources = renderer.callback_resources.get().unwrap();
-
-        let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
-            label: Some("bind group"),
-            layout: &resources.bind_group_layout,
-            entries: &[
-                wgpu::BindGroupEntry {
-                    binding: 0,
-                    resource: wgpu::BindingResource::TextureView(&texture_view),
-                },
-                wgpu::BindGroupEntry {
-                    binding: 1,
-                    resource: wgpu::BindingResource::Sampler(&sampler),
-                },
-                wgpu::BindGroupEntry {
-                    binding: 2,
-                    resource: color_buffer.as_entire_binding(),
-                },
-            ],
-        });
-
-        (
-            Self {
-                bind_group: Arc::new(bind_group),
-                color_buffer: Arc::new(color_buffer),
-                display_mode: DisplayMode::Anaglyph,
-                colors,
-            },
-            sink,
-        )
-    }
-
-    pub fn update(&mut self, display_mode: DisplayMode, colors: [Color32; 2]) {
-        self.display_mode = display_mode;
-        self.colors = Colors::new(colors[0], colors[1]);
-    }
-}
-
-impl Widget for &mut GameScreen {
-    fn ui(self, ui: &mut egui::Ui) -> egui::Response {
-        let response = ui.allocate_rect(ui.clip_rect(), egui::Sense::hover());
-        let callback = egui_wgpu::Callback::new_paint_callback(
-            response.rect,
-            GameScreenCallback {
-                bind_group: self.bind_group.clone(),
-                color_buffer: self.color_buffer.clone(),
-                display_mode: self.display_mode,
-                colors: self.colors,
-            },
-        );
-        ui.painter().add(callback);
-        response
-    }
-}
-
-struct GameScreenCallback {
-    bind_group: Arc<BindGroup>,
-    color_buffer: Arc<Buffer>,
-    display_mode: DisplayMode,
-    colors: Colors,
-}
-
-impl egui_wgpu::CallbackTrait for GameScreenCallback {
-    fn prepare(
-        &self,
-        _device: &wgpu::Device,
-        queue: &wgpu::Queue,
-        _screen_descriptor: &egui_wgpu::ScreenDescriptor,
-        _egui_encoder: &mut wgpu::CommandEncoder,
-        _callback_resources: &mut egui_wgpu::CallbackResources,
-    ) -> Vec<wgpu::CommandBuffer> {
-        queue.write_buffer(&self.color_buffer, 0, bytemuck::bytes_of(&self.colors));
-        vec![]
-    }
-    fn paint(
-        &self,
-        info: egui::PaintCallbackInfo,
-        render_pass: &mut wgpu::RenderPass<'static>,
-        callback_resources: &egui_wgpu::CallbackResources,
-    ) {
-        let resources: &SharedGameScreenResources = callback_resources.get().unwrap();
-        let viewport = info.viewport_in_pixels();
-        let left = viewport.left_px as f32;
-        let top = viewport.top_px as f32;
-        let width = viewport.width_px as f32;
-        let height = viewport.height_px as f32;
-        let aspect_ratio = {
-            let proportions = self.display_mode.proportions();
-            proportions.x / proportions.y
-        };
-        let w = width.min(height * aspect_ratio);
-        let h = height.min(width / aspect_ratio);
-        let x = left + (width - w) / 2.0;
-        let y = top + (height - h) / 2.0;
-        let pipeline = resources
-            .render_pipelines
-            .get(&self.display_mode)
-            .unwrap_or_else(|| panic!("Unrecognized display mode {:?}", self.display_mode));
-        render_pass.set_pipeline(pipeline);
-        render_pass.set_bind_group(0, &self.bind_group, &[]);
-        render_pass.set_viewport(x, y, w, h, 0.0, 1.0);
-        render_pass.draw(0..6, 0..1);
-    }
-}
-
-struct SharedGameScreenResources {
-    render_pipelines: HashMap<DisplayMode, RenderPipeline>,
-    bind_group_layout: BindGroupLayout,
-}
-
-#[derive(Clone, Copy, bytemuck::Pod, bytemuck::Zeroable)]
-#[repr(C)]
-struct Colors {
-    left: Rgba,
-    right: Rgba,
-}
-impl Colors {
-    fn new(left: Color32, right: Color32) -> Self {
-        Self {
-            left: left.into(),
-            right: right.into(),
-        }
-    }
-}
-
-#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Serialize, Deserialize)]
-pub enum DisplayMode {
-    Anaglyph,
-    LeftEye,
-    RightEye,
-    SideBySide,
-}
-
-impl DisplayMode {
-    pub fn proportions(self) -> Vec2 {
-        match self {
-            Self::SideBySide => Vec2::new(768.0, 224.0),
-            _ => Vec2::new(384.0, 224.0),
-        }
-    }
-}

src/window/input.rs

@@ -1,263 +0,0 @@
-use egui::{
-    Button, CentralPanel, Context, Label, Layout, TopBottomPanel, Ui, ViewportBuilder, ViewportId,
-};
-use egui_extras::{Column, TableBuilder};
-use gilrs::{EventType, GamepadId};
-use std::sync::RwLock;
-
-use crate::{
-    emulator::{SimId, VBKey},
-    input::{MappingProvider, Mappings},
-};
-
-use super::AppWindow;
-
-pub struct InputWindow {
-    mappings: MappingProvider,
-    now_binding: Option<VBKey>,
-    active_tab: InputTab,
-}
-
-const KEY_NAMES: [(VBKey, &str); 14] = [
-    (VBKey::LU, "Up"),
-    (VBKey::LD, "Down"),
-    (VBKey::LL, "Left"),
-    (VBKey::LR, "Right"),
-    (VBKey::SEL, "Select"),
-    (VBKey::STA, "Start"),
-    (VBKey::B, "B"),
-    (VBKey::A, "A"),
-    (VBKey::LT, "L-Trigger"),
-    (VBKey::RT, "R-Trigger"),
-    (VBKey::RU, "R-Up"),
-    (VBKey::RD, "R-Down"),
-    (VBKey::RL, "R-Left"),
-    (VBKey::RR, "R-Right"),
-];
-
-impl InputWindow {
-    pub fn new(mappings: MappingProvider) -> Self {
-        Self {
-            mappings,
-            now_binding: None,
-            active_tab: InputTab::Player1,
-        }
-    }
-
-    fn show_bindings<T: Mappings>(
-        &mut self,
-        ui: &mut Ui,
-        mappings: &RwLock<T>,
-        bind_message: &str,
-    ) {
-        ui.horizontal(|ui| {
-            if ui.button("Use defaults").clicked() {
-                mappings.write().unwrap().use_default_mappings();
-                self.mappings.save();
-                self.now_binding = None;
-            }
-            if ui.button("Clear all").clicked() {
-                mappings.write().unwrap().clear_all_mappings();
-                self.mappings.save();
-                self.now_binding = None;
-            }
-        });
-        ui.separator();
-        let mut names = {
-            let mapping = mappings.read().unwrap();
-            mapping.mapping_names()
-        };
-        TableBuilder::new(ui)
-            .column(Column::remainder())
-            .column(Column::remainder())
-            .cell_layout(Layout::left_to_right(egui::Align::Center))
-            .body(|mut body| {
-                for keys in KEY_NAMES.chunks_exact(2) {
-                    body.row(20.0, |mut row| {
-                        for (key, name) in keys {
-                            let binding = names.remove(key).map(|mut s| {
-                                s.sort();
-                                s.join(", ")
-                            });
-                            row.col(|ui| {
-                                let size = ui.available_size_before_wrap();
-                                let width = size.x;
-                                let height = size.y;
-                                ui.add_sized((width * 0.2, height), Label::new(*name));
-                                let label_text = if self.now_binding == Some(*key) {
-                                    bind_message
-                                } else {
-                                    binding.as_deref().unwrap_or("")
-                                };
-                                if ui
-                                    .add_sized((width * 0.6, height), Button::new(label_text))
-                                    .clicked()
-                                {
-                                    self.now_binding = Some(*key);
-                                }
-                                if ui
-                                    .add_sized(ui.available_size(), Button::new("Clear"))
-                                    .clicked()
-                                {
-                                    let mut mapping = mappings.write().unwrap();
-                                    mapping.clear_mappings(*key);
-                                    drop(mapping);
-                                    self.mappings.save();
-                                    self.now_binding = None;
-                                }
-                            });
-                        }
-                    });
-                }
-            });
-    }
-
-    fn show_key_bindings(&mut self, ui: &mut Ui, sim_id: SimId) {
-        let mappings = self.mappings.for_sim(sim_id).clone();
-        self.show_bindings(ui, &mappings, "Press any key");
-    }
-
-    fn show_gamepads(&mut self, ui: &mut Ui) {
-        let mut gamepads = self.mappings.gamepad_info();
-        gamepads.sort_by_key(|g| usize::from(g.id));
-
-        if gamepads.is_empty() {
-            ui.label("No gamepads connected.");
-            return;
-        }
-
-        for (index, gamepad) in gamepads.into_iter().enumerate() {
-            ui.horizontal(|ui| {
-                ui.label(format!("Gamepad {index}: {}", gamepad.name));
-                let mut bound_to = gamepad.bound_to;
-                let mut rebind = false;
-                rebind |= ui
-                    .selectable_value(&mut bound_to, Some(SimId::Player1), "Player 1")
-                    .changed();
-                rebind |= ui
-                    .selectable_value(&mut bound_to, Some(SimId::Player2), "Player 2")
-                    .changed();
-                rebind |= ui.selectable_value(&mut bound_to, None, "Nobody").changed();
-                if rebind {
-                    match bound_to {
-                        Some(sim_id) => self.mappings.assign_gamepad(gamepad.id, sim_id),
-                        None => self.mappings.unassign_gamepad(gamepad.id),
-                    }
-                }
-                ui.separator();
-                if ui.button("Rebind").clicked() {
-                    self.active_tab = InputTab::RebindGamepad(gamepad.id);
-                }
-            });
-        }
-    }
-
-    fn show_gamepad_bindings(&mut self, ui: &mut Ui, gamepad_id: GamepadId) {
-        let Some(mappings) = self.mappings.for_gamepad(gamepad_id) else {
-            self.active_tab = InputTab::Gamepads;
-            return;
-        };
-        self.show_bindings(ui, &mappings, "Press any input");
-    }
-}
-
-impl AppWindow for InputWindow {
-    fn viewport_id(&self) -> ViewportId {
-        ViewportId::from_hash_of("input")
-    }
-
-    fn initial_viewport(&self) -> ViewportBuilder {
-        ViewportBuilder::default()
-            .with_title("Bind Inputs")
-            .with_inner_size((600.0, 400.0))
-    }
-
-    fn show(&mut self, ctx: &Context) {
-        TopBottomPanel::top("options").show(ctx, |ui| {
-            ui.horizontal(|ui| {
-                let old_active_tab = self.active_tab;
-                ui.selectable_value(&mut self.active_tab, InputTab::Player1, "Player 1");
-                ui.selectable_value(&mut self.active_tab, InputTab::Player2, "Player 2");
-                ui.selectable_value(&mut self.active_tab, InputTab::Gamepads, "Gamepads");
-                if matches!(self.active_tab, InputTab::RebindGamepad(_)) {
-                    let tab = self.active_tab;
-                    ui.selectable_value(&mut self.active_tab, tab, "Rebind Gamepad");
-                }
-                if old_active_tab != self.active_tab {
-                    self.now_binding = None;
-                }
-            });
-        });
-        CentralPanel::default().show(ctx, |ui| {
-            match self.active_tab {
-                InputTab::Player1 => self.show_key_bindings(ui, SimId::Player1),
-                InputTab::Player2 => self.show_key_bindings(ui, SimId::Player2),
-                InputTab::Gamepads => self.show_gamepads(ui),
-                InputTab::RebindGamepad(id) => self.show_gamepad_bindings(ui, id),
-            };
-        });
-    }
-
-    fn handle_key_event(&mut self, event: &winit::event::KeyEvent) {
-        if !event.state.is_pressed() {
-            return;
-        }
-        let sim_id = match self.active_tab {
-            InputTab::Player1 => SimId::Player1,
-            InputTab::Player2 => SimId::Player2,
-            _ => {
-                return;
-            }
-        };
-        let Some(vb) = self.now_binding.take() else {
-            return;
-        };
-        let mut mappings = self.mappings.for_sim(sim_id).write().unwrap();
-        mappings.add_keyboard_mapping(vb, event.physical_key);
-        drop(mappings);
-        self.mappings.save();
-    }
-
-    fn handle_gamepad_event(&mut self, event: &gilrs::Event) {
-        let InputTab::RebindGamepad(gamepad_id) = self.active_tab else {
-            return;
-        };
-        if gamepad_id != event.id {
-            return;
-        }
-        let Some(mappings) = self.mappings.for_gamepad(gamepad_id) else {
-            return;
-        };
-        let Some(vb) = self.now_binding else {
-            return;
-        };
-        match event.event {
-            EventType::ButtonPressed(_, code) => {
-                let mut mapping = mappings.write().unwrap();
-                mapping.add_button_mapping(vb, code);
-                self.now_binding.take();
-            }
-            EventType::AxisChanged(_, value, code) => {
-                if value < -0.75 {
-                    let mut mapping = mappings.write().unwrap();
-                    mapping.add_axis_neg_mapping(vb, code);
-                    self.now_binding.take();
-                }
-                if value > 0.75 {
-                    let mut mapping = mappings.write().unwrap();
-                    mapping.add_axis_pos_mapping(vb, code);
-                    self.now_binding.take();
-                }
-            }
-            _ => {}
-        }
-    }
-}
-
-#[derive(Clone, Copy, PartialEq, Eq)]
-enum InputTab {
-    Player1,
-    Player2,
-    Gamepads,
-    RebindGamepad(GamepadId),
-}

ui.c

@@ -0,0 +1,218 @@
+#include "audio.h"
+#include "controller.h"
+#include "emulation.h"
+#include "external/tinyfiledialogs.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include "ui.h"
+#include "window.h"
+
+struct UIContext {
+    EmulationContext emu;
+    WindowContext win;
+    AudioContext aud;
+    ControllerState ctrl;
+};
+
+UIContext *uiInit() {
+    UIContext *ui = malloc(sizeof(UIContext));
+    if (emuInit(&ui->emu)) {
+        goto destroy_ui;
+    }
+    if (windowInit(&ui->win, "Shrooms VB")) {
+        goto destroy_emu;
+    }
+    if (audioInit(&ui->aud)) {
+        goto destroy_window;
+    }
+    ctrlInit(&ui->ctrl);
+    return ui;
+
+destroy_window:
+    windowDestroy(&ui->win);
+destroy_emu:
+    emuDestroy(&ui->emu);
+destroy_ui:
+    free(ui);
+    return NULL;
+}
+
+void uiDestroy(UIContext *ui) {
+    audioDestroy(&ui->aud);
+    windowDestroy(&ui->win);
+    emuDestroy(&ui->emu);
+    free(ui);
+}
+
+int uiLoadGame(UIContext *ui, const char *path) {
+    FILE *file = fopen(path, "rb");
+    uint8_t *rom = NULL;
+    long fileSize;
+    uint32_t romSize;
+    int result;
+
+    if (!file) {
+        perror("could not open file");
+        return -1;
+    }
+
+    if (fseek(file, 0, SEEK_END)) {
+        perror("could not seek file end");
+        goto close_file;
+    }
+    fileSize = ftell(file);
+    if (fileSize == -1) {
+        perror("could not read file size");
+        goto close_file;
+    }
+    if (fseek(file, 0, SEEK_SET)) {
+        perror("could not seek file start");
+        goto close_file;
+    }
+    romSize = (uint32_t) fileSize;
+
+    rom = malloc(romSize);
+    if (!rom) {
+        perror("could not allocate ROM");
+        goto close_file;
+    }
+    fread(rom, 1, romSize, file);
+    if (ferror(file)) {
+        perror("could not read file");
+        goto free_rom;
+    }
+    result = fclose(file);
+    file = NULL;
+    if (result) {
+        perror("could not close file");
+        goto free_rom;
+    }
+
+    emuLoadGame(&ui->emu, rom, romSize);
+    return 0;
+
+free_rom:
+    free(rom);
+close_file:
+    if (file) fclose(file);
+    return -1;
+}
+
+static const char *MENU_ITEMS[4] = {
+    "File",
+    "Emulation",
+    "Video",
+    NULL
+};
+
+static const char *ROM_EXTENSIONS[2] = {
+    "*.vb",
+    NULL
+};
+
+typedef enum status_t {
+    status_paused,
+    status_running
+} status_t;
+
+int uiRun(UIContext *ui, bool running) {
+    static uint8_t leftEye[384*224] = {0};
+    static uint8_t rightEye[384*224] = {0};
+    status_t status = running ? status_running : status_paused;
+    windowUpdate(&ui->win, leftEye, rightEye);
+
+    while (1) {
+        struct nk_context *ctx;
+        SDL_Event event;
+        void *samples;
+        uint32_t bytes;
+        ctx = ui->win.nk;
+
+        if (status == status_running) {
+            emuTick(&ui->emu);
+        }
+
+        if (emuReadPixels(&ui->emu, leftEye, rightEye)) {
+            windowUpdate(&ui->win, leftEye, rightEye);
+        }
+        emuReadSamples(&ui->emu, &samples, &bytes);
+        if (bytes) {
+            audioUpdate(&ui->aud, samples, bytes);
+        }
+
+        windowDisplayBegin(&ui->win);
+        /* GUI */
+        if (windowGuiBegin(&ui->win, "Shrooms VB")) {
+            windowMenubarBegin(&ui->win, MENU_ITEMS);
+
+            if (windowMenuBegin(&ui->win, "File", 100)) {
+                if (windowMenuItemLabel(&ui->win, "Open ROM")) {
+                    char *file = tinyfd_openFileDialog("Pick a ROM", NULL, 1, ROM_EXTENSIONS, "Virtual Boy ROM files", false);
+                    if (file) {
+                        uiLoadGame(ui, file);
+                        status = status_running;
+                    }
+                }
+                if (windowMenuItemLabel(&ui->win, "Quit")) {
+                    SDL_Event QuitEvent;
+                    QuitEvent.type = SDL_QUIT;
+                    QuitEvent.quit.timestamp = SDL_GetTicks();
+                    SDL_PushEvent(&QuitEvent);
+                }
+                windowMenuEnd(&ui->win);
+            }
+
+            if (windowMenuBegin(&ui->win, "Emulation", 100)) {
+                const char *label = status == status_paused ? "Resume" : "Pause";
+                if (windowMenuItemLabel(&ui->win, label)) {
+                    if (status == status_paused)
+                        status = status_running;
+                    else
+                        status = status_paused;
+                }
+                if (windowMenuItemLabel(&ui->win, "Reset")) {
+                    emuReset(&ui->emu);
+                    status = emuIsGameLoaded(&ui->emu) ? status_running : status_paused;
+                }
+                windowMenuEnd(&ui->win);
+            }
+
+            if (windowMenuBegin(&ui->win, "Video", 100)) {
+                float multiplier = windowGetScreenSizeMultiplier(&ui->win);
+                if (windowMenuItemLabelChecked(&ui->win, "x1", multiplier == 1.0f)) {
+                    windowSetScreenSizeMultiplier(&ui->win, 1.0f);
+                }
+                if (windowMenuItemLabelChecked(&ui->win, "x2", multiplier == 2.0f)) {
+                    windowSetScreenSizeMultiplier(&ui->win, 2.0f);
+                }
+                if (windowMenuItemLabelChecked(&ui->win, "x3", multiplier == 3.0f)) {
+                    windowSetScreenSizeMultiplier(&ui->win, 3.0f);
+                }
+                if (windowMenuItemLabelChecked(&ui->win, "x4", multiplier == 4.0f)) {
+                    windowSetScreenSizeMultiplier(&ui->win, 4.0f);
+                }
+                windowMenuEnd(&ui->win);
+            }
+
+            windowMenubarEnd(&ui->win);
+        }
+        windowGuiEnd(&ui->win);
+        windowDisplayEnd(&ui->win);
+
+        nk_input_begin(ctx);
+        while (SDL_PollEvent(&event)) {
+            nk_sdl_handle_event(&event);
+            if (event.type == SDL_QUIT) {
+                return 0;
+            }
+            if (event.type == SDL_KEYDOWN) {
+                ctrlKeyDown(&ui->ctrl, event.key.keysym.sym);
+            }
+            if (event.type == SDL_KEYUP) {
+                ctrlKeyUp(&ui->ctrl, event.key.keysym.sym);
+            }
+        }
+        nk_input_end(ctx);
+        emuSetKeys(&ui->emu, ctrlKeys(&ui->ctrl));
+    }
+}

ui.h

@@ -0,0 +1,13 @@
+#ifndef SHROOMS_VB_NATIVE_UI_
+#define SHROOMS_VB_NATIVE_UI_
+
+#include <stdbool.h>
+
+typedef struct UIContext UIContext;
+
+UIContext *uiInit();
+void uiDestroy(UIContext *ui);
+int uiLoadGame(UIContext *ui, const char *path);
+int uiRun(UIContext *ui, bool running);
+
+#endif

window.c

@@ -0,0 +1,291 @@
+#include "assets.h"
+#include "nuklear.h"
+#include <string.h>
+#include "window.h"
+
+#define MENU_HEIGHT 20
+#define SCREEN_WIDTH 384
+#define SCREEN_HEIGHT 224
+
+static void setColorTable(struct nk_color *table) {
+    table[NK_COLOR_TEXT] = nk_rgb(40, 40, 40);
+    table[NK_COLOR_WINDOW] = nk_rgb(255, 255, 255);
+    table[NK_COLOR_HEADER] = nk_rgb(40, 40, 40);
+    table[NK_COLOR_BORDER] = nk_rgb(175, 175, 175);
+    table[NK_COLOR_BUTTON] = nk_rgb(255, 255, 255);
+    table[NK_COLOR_BUTTON_HOVER] = nk_rgb(215, 215, 215);
+    table[NK_COLOR_BUTTON_ACTIVE] = nk_rgb(175, 175, 175);
+    table[NK_COLOR_TOGGLE] = nk_rgb(100, 100, 100);
+    table[NK_COLOR_TOGGLE_HOVER] = nk_rgb(120, 120, 120);
+    table[NK_COLOR_TOGGLE_CURSOR] = nk_rgb(45, 45, 45);
+    table[NK_COLOR_SELECT] = nk_rgb(45, 45, 45);
+    table[NK_COLOR_SELECT_ACTIVE] = nk_rgb(35, 35, 35);
+    table[NK_COLOR_SLIDER] = nk_rgb(38, 38, 38);
+    table[NK_COLOR_SLIDER_CURSOR] = nk_rgb(100, 100, 100);
+    table[NK_COLOR_SLIDER_CURSOR_HOVER] = nk_rgb(120, 120, 120);
+    table[NK_COLOR_SLIDER_CURSOR_ACTIVE] = nk_rgb(150, 150, 150);
+    table[NK_COLOR_PROPERTY] = nk_rgb(38, 38, 38);
+    table[NK_COLOR_EDIT] = nk_rgb(38, 38, 38);
+    table[NK_COLOR_EDIT_CURSOR] = nk_rgb(175, 175, 175);
+    table[NK_COLOR_COMBO] = nk_rgb(45, 45, 45);
+    table[NK_COLOR_CHART] = nk_rgb(120, 120, 120);
+    table[NK_COLOR_CHART_COLOR] = nk_rgb(45, 45, 45);
+    table[NK_COLOR_CHART_COLOR_HIGHLIGHT] = nk_rgb(255, 0, 0);
+    table[NK_COLOR_SCROLLBAR] = nk_rgb(40, 40, 40);
+    table[NK_COLOR_SCROLLBAR_CURSOR] = nk_rgb(100, 100, 100);
+    table[NK_COLOR_SCROLLBAR_CURSOR_HOVER] = nk_rgb(120, 120, 120);
+    table[NK_COLOR_SCROLLBAR_CURSOR_ACTIVE] = nk_rgb(150, 150, 150);
+    table[NK_COLOR_TAB_HEADER] = nk_rgb(40, 40, 40);
+    table[NK_COLOR_KNOB] = nk_rgb(38, 38, 38);
+    table[NK_COLOR_KNOB_CURSOR] = nk_rgb(100, 100, 100);
+    table[NK_COLOR_KNOB_CURSOR_HOVER] = nk_rgb(120, 120, 120);
+    table[NK_COLOR_KNOB_CURSOR_ACTIVE] = nk_rgb(150, 150, 150);
+}
+
+static void applyStyles(struct nk_context *ctx, float scaleX, float scaleY) {
+    struct nk_color table[NK_COLOR_COUNT];
+    setColorTable(table);
+    nk_style_from_table(ctx, table);
+    ctx->style.window.padding = nk_vec2(0, 0);
+    ctx->style.window.spacing = nk_vec2(0, 0);
+    ctx->style.window.menu_padding = nk_vec2(0, 0);
+    ctx->style.window.menu_border = 0;
+
+    ctx->style.menu_button.hover = nk_style_item_color(table[NK_COLOR_BUTTON_HOVER]);
+    ctx->style.menu_button.active = nk_style_item_color(table[NK_COLOR_BUTTON_ACTIVE]);
+    ctx->style.menu_button.padding = nk_vec2(2 * scaleX, 2 * scaleY);
+    ctx->style.contextual_button.padding = nk_vec2(20 * scaleX, 4 * scaleY);
+}
+
+/* scale the window for High-DPI displays */
+static void scaleWindow(WindowContext *win) {
+    int renderW, renderH;
+    int oldWindowX, oldWindowY;
+    int newWindowX, newWindowY;
+    int oldWindowW, oldWindowH;
+    int newWindowW, newWindowH;
+    float scaleX, scaleY;
+    float hdpi, vdpi;
+    SDL_GetRendererOutputSize(win->renderer, &renderW, &renderH);
+    SDL_GetWindowPosition(win->window, &oldWindowX, &oldWindowY);
+    SDL_GetWindowSize(win->window, &oldWindowW, &oldWindowH);
+    SDL_GetDisplayDPI(SDL_GetWindowDisplayIndex(win->window), NULL, &hdpi, &vdpi);
+    scaleX = (float)(renderW) / (float)(oldWindowW);
+    scaleY = (float)(renderH) / (float)(oldWindowH);
+    win->screenScaleX = (hdpi / 96) * scaleX;
+    win->screenScaleY = (vdpi / 96) * scaleY;
+
+    newWindowW = SCREEN_WIDTH * win->screenSizeMultiplier * (hdpi / 96) / scaleX;
+    newWindowH = (SCREEN_HEIGHT * win->screenSizeMultiplier + MENU_HEIGHT) * (vdpi / 96) / scaleY;
+    newWindowX = oldWindowX - (newWindowW - oldWindowW) / 2;
+    newWindowY = oldWindowY - (newWindowH - oldWindowH) / 2;
+    if (newWindowX < 0) newWindowX = 0;
+    if (newWindowY < 0) newWindowY = 0;
+    SDL_SetWindowSize(win->window, newWindowW, newWindowH);
+    SDL_SetWindowPosition(win->window, newWindowX, newWindowY);
+}
+
+int windowInit(WindowContext *win, const char *title) {
+    win->screenSizeMultiplier = 1.0f;
+
+    win->window = SDL_CreateWindow(title,
+        SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
+        SCREEN_WIDTH, SCREEN_HEIGHT + MENU_HEIGHT, SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI);
+    if (!win->window) {
+        fprintf(stderr, "Error creating window: %s\n", SDL_GetError());
+        return -1;
+    }
+
+    win->renderer = SDL_CreateRenderer(win->window, -1, 0);
+    if (!win->renderer) {
+        fprintf(stderr, "Error creating renderer: %s\n", SDL_GetError());
+        goto cleanup_window;
+    }
+
+    win->leftEye = SDL_CreateTexture(win->renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, 384, 224);
+    if (!win->leftEye) {
+        fprintf(stderr, "Error creating left eye texture: %s\n", SDL_GetError());
+        goto cleanup_renderer;
+    }
+    SDL_SetTextureColorMod(win->leftEye, 0xff, 0, 0);
+
+    win->rightEye = SDL_CreateTexture(win->renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, 384, 224);
+    if (!win->rightEye) {
+        fprintf(stderr, "Error creating right eye texture: %s\n", SDL_GetError());
+        goto cleanup_left_eye;
+    }
+    SDL_SetTextureColorMod(win->rightEye, 0, 0xc6, 0xf0);
+    SDL_SetTextureBlendMode(win->rightEye, SDL_BLENDMODE_ADD);
+
+    scaleWindow(win);
+
+    win->nk = nk_sdl_init(win->window, win->renderer);
+    applyStyles(win->nk, win->screenScaleX, win->screenScaleY);
+    /* tell nuklear the mouse moved somewhere so it doesn't think we're hovering in the top left */
+    nk_input_motion(win->nk, 1024, 1024);
+
+    {
+        struct nk_font_atlas *atlas;
+        struct nk_font_config config = nk_font_config(0);
+        config.pixel_snap = 1;
+        config.oversample_h = 8;
+        config.oversample_v = 8;
+        
+        nk_sdl_font_stash_begin(&atlas);
+        win->font = nk_font_atlas_add_from_memory(atlas, (void*) SELAWIK, SELAWIK_LEN, 13 * win->screenScaleY, &config);
+        nk_sdl_font_stash_end();
+
+        nk_style_set_font(win->nk, &win->font->handle);
+    }
+
+    return 0;
+
+cleanup_left_eye:
+    SDL_DestroyTexture(win->leftEye);
+cleanup_renderer:
+    SDL_DestroyRenderer(win->renderer);
+cleanup_window:
+    SDL_DestroyWindow(win->window);
+    return -1;
+}
+
+void windowDestroy(WindowContext *win) {
+    SDL_DestroyTexture(win->rightEye);
+    SDL_DestroyTexture(win->leftEye);
+    SDL_DestroyRenderer(win->renderer);
+    SDL_DestroyWindow(win->window);
+}
+
+float windowGetScreenSizeMultiplier(WindowContext *win) {
+    return win->screenSizeMultiplier;
+}
+
+void windowSetScreenSizeMultiplier(WindowContext *win, float multiplier) {
+    win->screenSizeMultiplier = multiplier;
+    scaleWindow(win);
+    applyStyles(win->nk, win->screenScaleX, win->screenScaleY);
+}
+
+static void copyScreenTexture(uint8_t *dst, const uint8_t *src, int pitch) {
+    int x, y, i;
+    uint8_t color;
+    int delta = pitch / 384;
+    for (y = 0; y < 224; ++y) {
+        for (x = 0; x < 384; x += 1) {
+            color = src[(y * 384) + x];
+            for (i = 0; i < delta; ++i) {
+                dst[(y * pitch) + (x * delta) + i] = color;
+            }
+        }
+    }
+}
+
+static void updateEye(SDL_Texture *eye, const uint8_t *bytes) {
+    void *target;
+    int pitch;
+    if (SDL_LockTexture(eye, NULL, &target, &pitch)) {
+        fprintf(stderr, "Error locking buffer for eye: %s\n", SDL_GetError());
+        return;
+    }
+    copyScreenTexture(target, bytes, pitch);
+    SDL_UnlockTexture(eye);
+}
+
+void windowUpdate(WindowContext *win, const uint8_t *left, const uint8_t *right) {
+    updateEye(win->leftEye, left);
+    updateEye(win->rightEye, right);
+}
+
+int windowScaleX(WindowContext *win, int x) {
+    return x * win->screenScaleX;
+}
+
+int windowScaleY(WindowContext *win, int y) {
+    return y * win->screenScaleY;
+}
+
+int windowGetMenuHeight(WindowContext *win) {
+    return (MENU_HEIGHT + 2) * win->screenScaleY;
+}
+
+int windowGetScreenHeight(WindowContext *win) {
+    return SCREEN_HEIGHT * win->screenSizeMultiplier * win->screenScaleY;
+}
+
+void windowDisplayBegin(WindowContext *win) {
+    SDL_Rect dst;
+    dst.x = 0;
+    dst.y = MENU_HEIGHT * win->screenScaleY;
+    dst.w = SCREEN_WIDTH * win->screenSizeMultiplier * win->screenScaleX;
+    dst.h = SCREEN_HEIGHT * win->screenSizeMultiplier * win->screenScaleY;
+
+    SDL_RenderClear(win->renderer);
+    SDL_RenderCopy(win->renderer, win->leftEye, NULL, &dst);
+    SDL_RenderCopy(win->renderer, win->rightEye, NULL, &dst);
+}
+
+void windowDisplayEnd(WindowContext *win) {
+    nk_sdl_render(NK_ANTI_ALIASING_ON);
+    SDL_RenderPresent(win->renderer);
+}
+
+bool windowGuiBegin(WindowContext *win, const char *title) {
+    return nk_begin(win->nk, title,
+        nk_rect(0, 0, SCREEN_WIDTH * win->screenSizeMultiplier * win->screenScaleX, MENU_HEIGHT * win->screenScaleY),
+        NK_WINDOW_NO_SCROLLBAR | NK_WINDOW_BACKGROUND);
+}
+
+void windowGuiEnd(WindowContext *win) {
+    nk_end(win->nk);
+}
+
+void windowMenubarBegin(WindowContext *win, const char **items) {
+    const char **item;
+    nk_menubar_begin(win->nk);
+    nk_layout_row_template_begin(win->nk, MENU_HEIGHT * win->screenScaleY);
+    for (item = items; *item != NULL; item++) {
+        struct nk_user_font *handle;
+        int len;
+        float width;
+        handle = &win->font->handle;
+        len = nk_strlen(*item);
+        width = handle->width(handle->userdata, handle->height, *item, len) + (16 * win->screenScaleX);
+        nk_layout_row_template_push_static(win->nk, width);
+    }
+    nk_layout_row_template_end(win->nk);
+}
+
+void windowMenubarEnd(WindowContext *win) {
+    nk_menubar_end(win->nk);
+}
+
+bool windowMenuBegin(WindowContext *win, const char *label, int width) {
+    if (!nk_menu_begin_label(win->nk, label, NK_TEXT_ALIGN_CENTERED, nk_vec2(windowScaleX(win, width), windowGetScreenHeight(win)))) {
+        return false;
+    }
+    nk_layout_row_dynamic(win->nk, windowGetMenuHeight(win), 1);
+    return true;
+}
+
+void windowMenuEnd(WindowContext *win) {
+    nk_menu_end(win->nk);
+}
+
+bool windowMenuItemLabel(WindowContext *win, const char *label) {
+    return nk_menu_item_label(win->nk, label, NK_TEXT_ALIGN_LEFT);
+}
+
+bool windowMenuItemLabelChecked(WindowContext *win, const char *label, bool checked) {
+    char buffer[80];
+    bool result;
+    if (!checked) {
+        return windowMenuItemLabel(win, label);
+    }
+    strcpy(buffer, "  *  ");
+    strncpy(buffer + 5, label, 74);
+    buffer[79] = '\0';
+    nk_style_push_vec2(win->nk, &win->nk->style.contextual_button.padding, nk_vec2(4 * win->screenScaleX, 4 * win->screenScaleY));
+    result = nk_menu_item_label(win->nk, buffer, NK_TEXT_ALIGN_LEFT);
+    nk_style_pop_vec2(win->nk);
+    return result;
+}

window.h

@@ -0,0 +1,41 @@
+#ifndef SHROOMS_VB_NATIVE_WINDOW_
+#define SHROOMS_VB_NATIVE_WINDOW_
+
+#include <SDL2/SDL.h>
+#include "nuklear.h"
+
+typedef struct WindowContext {
+    SDL_Window *window;
+    float screenSizeMultiplier;
+    float screenScaleX, screenScaleY;
+    SDL_Renderer *renderer;
+    SDL_Texture *leftEye;
+    SDL_Texture *rightEye;
+    struct nk_context *nk;
+    struct nk_font *font;
+} WindowContext;
+
+int windowInit(WindowContext *win, const char *title);
+void windowDestroy(WindowContext *win);
+
+float windowGetScreenSizeMultiplier(WindowContext *win);
+void windowSetScreenSizeMultiplier(WindowContext *win, float multiplier);
+void windowUpdate(WindowContext *win, const uint8_t *left, const uint8_t *right);
+
+int windowScaleX(WindowContext *win, int x);
+int windowScaleY(WindowContext *win, int y);
+int windowGetMenuHeight(WindowContext *win);
+int windowGetScreenHeight(WindowContext *win);
+
+void windowDisplayBegin(WindowContext *win);
+void windowDisplayEnd(WindowContext *win);
+bool windowGuiBegin(WindowContext *win, const char *title);
+void windowGuiEnd(WindowContext *win);
+void windowMenubarBegin(WindowContext *win, const char **items);
+void windowMenubarEnd(WindowContext *win);
+bool windowMenuBegin(WindowContext *win, const char *label, int width);
+void windowMenuEnd(WindowContext *win);
+bool windowMenuItemLabel(WindowContext *win, const char *label);
+bool windowMenuItemLabelChecked(WindowContext *win, const char *label, bool checked);
+
+#endif